Lokerse Feesten

Cashless payments

Smoking area

Parking

First aid station

Shuttle service

Showers

Lost & found

Food court

Water station

Info desk

Wheelchair access

Vegan/vegetarian

Toilets

Other

Country

Hip Hop

Electronic

Rock

Metal

Punk

Reggae

European

Alternative

Prepare for an unforgettable summer experience as Lokerse Feesten returns in 2026, transforming the charming city of Lokeren into a vibrant hub of music and celebration. This legendary 10-day festival, steeped in history since its inception in 1975, promises an eclectic mix of pop, rock, and jazz that will captivate every attendee. Imagine dancing under the Belgian sky, surrounded by fellow music lovers, as world-class artists grace the stage. Lokerse Feesten has a storied past, having hosted an incredible roster of legends, from the iconic Snoop Dogg to the electrifying Simple Minds. Fans have also witnessed unforgettable performances by The Cure, The Sisters of Mercy, Iggy & The Stooges, and the inimitable Madness. The festival's rich alumni list further boasts The Human League, the rebellious Sex Pistols, the soulful Sinéad O'Connor, and the enigmatic Morrissey, among many others. This year, expect nothing less than a spectacular lineup that continues this grand tradition of musical excellence. Get ready to immerse yourself in a diverse soundscape, discover new favorites, and create lasting memories at one of Europe's most beloved festivals. Lokerse Feesten 2026 is not just a festival; it's a cultural phenomenon, a true celebration of music, art, and community. Don't miss your chance to be part of this extraordinary event!

City festival

Family-friendly

Eco-friendly

Camping

Sightseeing

Glamping

Chill zone

Lokerse Feesten 2026

Grote Kaai

Bomboclat Festival

Lockers

Latin

Blues

Religious

Dive into the vibrant heart of Bomboclat Festival 2026, a two-day celebration pulsating with the rhythms of Africa and the Caribbean, set against the scenic Belgian coastline. From August 28th to 29th, immerse yourself in an electrifying lineup featuring the freshest sounds of Afrobeats, Dancehall, Reggae, and Hip-Hop. Beyond the main stages, discover intimate DJ sets and emerging artists pushing genre boundaries, ensuring a dynamic auditory journey for every attendee. Bomboclat is more than just music; it's a cultural explosion, with bustling markets offering authentic crafts, tantalizing global street food, and interactive workshops celebrating diverse traditions. Feel the sand between your toes as you dance from day into night, surrounded by a community united by a love for vibrant sound and shared experiences. This festival promises an unforgettable escape, a place where joy is amplified and connections are forged under the summer sky. Join us for a unique blend of high-energy performances and laid-back beachside vibes, creating memories that will resonate long after the final beat drops.

Beach festival

Pet-friendly

Workshops

Culture/Arts

Bomboclat Festival 2026

Medium

Zeedijk 13a

WECANDANCE

Credit cards accepted

Phone charging station

Public Wi-Fi

Grocery store

Bike rentals & storage

Jazz

African

Folk & Traditional

Get ready to groove on the sands of Zeebrugge Beach at WeCanDance Festival! This Belgian beachside bash boasts five stages packed with top-tier electronic DJs from every corner of the globe. Beyond the music, WeCanDance offers a unique experience with a different theme each year. Festival-goers are encouraged to dress accordingly, diving headfirst into a world where fashion meets rhythm. Imagine yourself dancing the day away with your toes in the sand, surrounded by vibrant costumes, electrifying beats, and a crowd as lively as the music itself. It's more than just a festival; it's an immersive journey into a world of sound and style. So, pack your bags, choose your most outrageous outfit, and come prepared to dance like nobody's watching at WeCanDance! Get ready for an unforgettable party under the sun. This is one beach bash you won't want to miss!

Sports

Gourmet food & beverages

WeCanDance 2026

Zeebrugge Beach

Brakrock Ecofest

Dive into the ultimate independent music experience at Brakrock Ecofest 2026, taking over Duffel, Belgium, from August 7th to 8th. This isn't just another festival; it's a vibrant celebration of punk, hardcore, and alternative rock, meticulously curated for discerning fans. Prepare for two days of raw energy, blistering riffs, and unforgettable sing-alongs across multiple stages. Nestled just outside Antwerp, Brakrock offers an intimate yet electrifying atmosphere, far removed from corporate giants. What truly sets Brakrock apart is its unwavering commitment to sustainability, living up to its "Ecofest" moniker. Attendees can revel in powerful performances knowing the festival champions ecological practices and responsible enjoyment. Expect a tightly-knit community of passionate music lovers, fostering an incredible sense of camaraderie that defines the Brakrock spirit. From legendary acts to rising stars, the lineup promises a relentless auditory assault that will leave you wanting more. Beyond the music, discover local delights and an inclusive vibe that welcomes everyone into the Brakrock family. Shake off the mainstream and immerse yourself in an authentic, high-octane weekend where sustainability meets sonic rebellion. Mark your calendars for August 7-8, 2026, and experience a festival that truly stands for something.

Forest festival

Park festival

Wellness

Brakrock Ecofest 2026

Station DUFFEL

Draaimolen Festival

Prepare for an extraordinary journey to the heart of electronic music, art, and nature at Draaimolen Festival 2026! Nestled in the vibrant city of Tilburg, Netherlands, this independent event promises an immersive experience unlike any other. Step into a world where pulsating beats blend seamlessly with captivating artistic installations, all set against a stunning natural backdrop. Draaimolen isn't just a festival; it's a meticulously curated sonic and visual adventure designed to awaken your senses. Discover cutting-edge electronic sounds, explore innovative art, and connect with a community that shares a passion for profound cultural experiences. While the eagerly anticipated lineup for 2026 is still under wraps, expect a roster of world-class talent that pushes boundaries and ignites the dance floor. With its commitment to independence and a unique blend of acoustic and electronic elements, Draaimolen stands out as a beacon for true music aficionados. Get ready to lose yourself in an unforgettable celebration of creativity and sound, making memories that will echo long after the final note fades.

Draaimolen Festival 2026

MOB Complex

Ethereal Decibel Festival 2024

Asian

Welcome to one of the craziest and loudest festivals of the summer. Decibel Outdoor Festival is a massive hardstyle gathering nestled in the scenic landscapes of the Netherlands. Prepare to lose yourself across 250 incredible artists spread throughout 23 distinct areas. The stages rotate genres daily, ensuring every step through the festival grounds reveals fresh musical adventures. Creative art productions and mind-blowing stage designs elevate the atmosphere to legendary proportions. From heart-pounding bass drops to euphoric melodies, the energy never lets up from start to finish. Thousands of passionate fans unite here to celebrate their ultimate love for electronic music. Expect unforgettable moments, roaring crowds, and immersive audiovisual spectacles at every turn. Grab your friends, embrace the vibrant community, and dive deep into the ultimate weekend escape. As the festival motto proudly proclaims, it is time to live loud!

Decibel Outdoor Festival 2026

Huge

Safaripark Beekse Bergen

Le Guess Who?

Classical

Middle Eastern

Instrumental

Prepare to immerse yourself in the cutting-edge sounds of Le Guess Who?, an unparalleled underground music festival that transforms the vibrant Dutch college city of Utrecht. This isn't just a festival; it's a meticulously curated journey into the heart of the indie scene, showcasing where music is heading next. Over a hundred groundbreaking acts converge, taking over an array of unique venues across the city. Imagine discovering your new favorite band performing in intimate clubs, grand theaters, historic churches, contemporary art galleries, and even repurposed industrial warehouses. Each location offers a distinctive backdrop, amplifying the raw energy and experimental spirit of the performances. Le Guess Who? is more than just a series of concerts; it's an experience designed for the adventurous listener, a true barometer for the future of independent music. Beyond the stages, the festival fosters a rich atmosphere of discovery and cultural exchange, inviting attendees to explore Utrecht's charm while seeking out unexpected sonic treasures. Don't miss your chance to be part of this extraordinary musical pilgrimage, where the boundaries of genre and artistry are constantly pushed, creating memories that resonate long after the final note fades.

Le Guess Who? 2026

Multiple Venues

Dekmantel Festival

Get ready to groove at Dekmantel Festival 2026, where the beats are bold and the atmosphere is electric! This Amsterdam-based extravaganza is set to deliver an unforgettable experience with a carefully curated lineup of electronic music's finest. Imagine yourself immersed in the vibrant energy of Amsterdamse Bos, a breathtaking city park that transforms into a pulsating dance floor. Dekmantel isn't just a festival; it's a musical journey that caters to every shade of electronic music aficionado. The festival promises an eclectic mix of sounds, from techno and house to experimental electronic music, ensuring there's something for every discerning ear. So, gather your friends, pack your dancing shoes, and prepare to lose yourself in the rhythm of Dekmantel. With stunning visuals, top-notch sound systems, and an unparalleled sense of community, this is one party you won't want to miss!

Movies/Theatre

Dekmantel Festival 2026

The Amsterdamse Bos

LatinVillage Festival

Step into the vibrant world of LatinVillage Festival 2026, an intoxicating celebration of Latin American culture set against a lush, expansive backdrop on August 16th. This single-day escape transforms into a pulsating paradise, where the rhythms of salsa, merengue, bachata, reggaeton, and dembow ignite the air. Multiple stages host a stellar lineup of international and local artists, ensuring every beat moves your soul and every melody captivates your spirit. Beyond the electrifying music, LatinVillage immerses you in a rich tapestry of experiences, from captivating dance workshops to a delectable array of authentic Latin street food and refreshing cocktails. Explore bustling markets offering unique crafts and vibrant apparel, or simply soak in the joyous atmosphere as colorful decorations adorn the festival grounds. It's a day designed for dancing, discovery, and embracing the infectious warmth of Latin American heritage. Gather your friends and prepare for an unforgettable sensory journey, where the sun shines bright, the music never stops, and every moment is infused with passion.

Unique location

Gaming

LatinVillage Festival 2026

Spaarnwoude

Lowlands

Laundry facilities

Mark your calendars for August 21-23, 2026, as Lowlands returns to the verdant fields of Biddinghuizen, Netherlands. This legendary Dutch institution consistently delivers an expansive soundtrack spanning indie rock, cutting-edge electronic, hip-hop, pop, and an array of global sounds across its many stages. Lowlands transcends the typical music festival experience, evolving into a vibrant, temporary city where culture thrives alongside sonic innovation. Beyond the numerous musical performances, attendees can immerse themselves in thought-provoking talks, engaging theatre, captivating art installations, and even scientific debates. Literary readings and comedy acts further enrich the incredibly diverse programming, ensuring there's always something stimulating to discover. The renowned camping experience fosters an unparalleled sense of camaraderie, transforming strangers into temporary neighbors in this eclectic village. Discover hidden gems on intimate stages or lose yourself in the energy of explosive main stage spectacles. Every pathway through the extensive grounds promises a new artistic or auditory delight, often accompanied by exceptional culinary offerings. It’s a weekend-long adventure where curiosity is rewarded and every corner invites exploration. Lowlands is designed for those who appreciate both groundbreaking music and a broad spectrum of cultural engagement. Prepare for three days of boundless creativity, unforgettable performances, and an indelible Dutch festival spirit.

Lowlands 2026

Evenemententerrein Walibi Holland

Kunstrasen Bonn

Bonn’s beloved summer tradition returns as Kunstrasen transforms its scenic riverside location into an unparalleled open-air concert experience, running from July 3rd to August 28th, 2026. Nestled against the backdrop of the Rhine, this extended series curates an eclectic roster of international and national stars, promising nearly two months of unforgettable live music. Attendees can anticipate a diverse sonic landscape, typically spanning rock, pop, indie, and contemporary sounds, with each artist bringing their unique energy to the stage.

Unlike a traditional multi-day festival, Kunstrasen offers a flexible journey through summer's soundtrack, allowing you to select individual concert dates or immerse yourself in multiple performances throughout the season. Picture balmy evenings, the gentle breeze off the river, and the collective exhilaration of a crowd united by powerful melodies and captivating artistry. It's a quintessential Bonn summer experience, perfect for those seeking relaxed cultural evenings or high-energy musical celebrations under the stars. Beyond the stage, the venue often enhances the atmosphere with diverse food and drink offerings. Prepare to discover new favorites and sing along to timeless anthems in one of Germany's most picturesque outdoor settings, as Kunstrasen Bonn 2026 promises a summer filled with vibrant sounds and cherished memories.

Field festival

Kunstrasen Bonn 2026

Global 100% Renewable Energy Platform

Creamfields South

Creamfields South 2026 invites you to an unparalleled electronic music odyssey across the August Bank Holiday weekend, from the 27th to the 30th. Immerse yourself in four days and nights of groundbreaking sounds, set within an expansive southern UK parkland that transforms into a vibrant hub of euphoria. This legendary festival proudly presents a world-class lineup, spanning the spectrum of house, techno, trance, drum & bass, and progressive beats, featuring both iconic headliners and the scene's most exciting new talents.

Experience an atmosphere charged with electrifying energy, where every beat resonates through revolutionary stage designs and a truly immersive audiovisual spectacle. Creamfields South isn't just an event; it's a colossal celebration of dance music culture, powered by cutting-edge production that pushes the boundaries of live entertainment. Expect breathtaking pyro displays, intricate lighting, and sound systems engineered for pure sonic impact. Join thousands of like-minded revelers to forge unforgettable memories and witness musical history in the making. This is your destination for an epic journey into the heart of electronic music, a definitive highlight on the global festival calendar.

Creamfields South 2026

9F32PC9J+GF4

Appetite on the Farm

Appetite On The Farm returns for its most ambitious edition yet on August 29–30, 2026, taking over the historic Kelvedon Hall in Essex for a massive August Bank Holiday weekend. Located just 30 minutes from London, the festival will welcome 20,000 fans across six uniquely themed stages—including The Barn and The Forest—featuring a heavy-hitting lineup of house, tech, and garage. Highlights include legends like Jamie Jones, Todd Edwards, and Skream, alongside contemporary tastemakers like Luke Dean, Eliza Rose, and founders Elliott Schooling & Liam Palmer. Beyond the music, the event stays true to its community roots with an immersive food market and inclusive social spaces.

Appetite on the Farm 2026

Kelvedon Hall, Brentwood

MaMA Music & Convention

MaMA Music & Convention returns to the vibrant streets of Paris from October 14th to 16th, 2026, transforming Pigalle and Montmartre into a dynamic hub for the global music industry. This isn't just a festival; it's a vital crossroads where emerging artists meet seasoned professionals and groundbreaking sounds are discovered. Across an array of iconic Parisian venues, attendees can immerse themselves in a diverse program showcasing every genre imaginable, from indie rock and electronic to hip-hop and world music, ensuring a rich tapestry of auditory experiences. Beyond the captivating live performances, MaMA stands as France's leading professional music event, offering an unparalleled platform for networking, conferences, and B2B meetings. Industry leaders and innovators converge to discuss the future of music, share insights, and forge new collaborations. The atmosphere is electric – a unique blend of intimate club shows, grand concerts, and bustling professional exchanges, all set against the romantic backdrop of autumn in Paris. Whether you're an artist looking to break through, a professional seeking new opportunities, or simply a music lover eager to discover the next big thing, MaMA 2026 offers an unforgettable and essential experience. It's where the heart of music beats brightest for three exhilarating days.

MaMA Music & Convention 2026

Pigalle

Field Maneuvers

Prepare for an unforgettable experience at Field Maneuvers 2026, a truly unique and vibrant electronic music festival. This isn't your average event; it's a no-frills rave where the music and the atmosphere take center stage. Nestled in a secret location, the festival promises an intimate and immersive escape from the everyday. Dive into a world of pulsating beats and electrifying performances from a diverse range of electronic artists. Field Maneuvers is renowned for its dedication to the underground scene, offering a platform for both established and emerging talent. Beyond the music, expect a community-driven vibe, where fellow ravers come together to celebrate their shared passion. With its boutique charm and focus on pure, unadulterated electronic sound, this festival is a must-attend for anyone seeking an authentic and exhilarating musical journey. Get ready to dance until dawn and create memories that will last a lifetime in this extraordinary, hidden gem of the UK festival circuit.

Field Maneuvers 2026

Small

Secret Location

Boundary Brighton

Prepare for an unforgettable experience as Boundary Brighton returns, channeling the vibrant heart and soul of this iconic city! This isn't just a festival; it's a spectacular celebration infused with Brighton's unique creative energy and an undeniable lust for life. Imagine stepping into a world where five dynamic stages pulsate with incredible music, promising a diverse sonic journey for every taste. Beyond the beats, a thrilling funfair awaits, ready to whisk you away on exhilarating rides and fill the air with joyous screams. Food lovers, rejoice! A delectable array of local culinary delights will tantalize your taste buds, offering everything from gourmet treats to classic festival fare. But the magic doesn't stop there; Boundary Brighton is renowned for its unexpected surprises and delightful treats around every corner. It's a place where spontaneity thrives, and every moment is ripe for discovery. Gather your friends, embrace the electric atmosphere, and get ready to create memories that will last a lifetime. This festival perfectly encapsulates the generosity of spirit that defines Brighton, welcoming everyone to join in the revelry. Don't miss out on the ultimate fusion of music, fun, and flavor in one of the UK's most beloved cities. Boundary Brighton is calling – answer the call to an extraordinary adventure!

Amusement park

Boundary Brighton 2026

Stanmer Park

Waterworks Festival

Get ready to immerse yourself in the electrifying vibes of Waterworks Festival 2026! This one-day extravaganza is set to take over Gunnersbury Park in London, promising an unforgettable experience for music lovers. With a stellar lineup of over 70 artists, this festival is a sonic playground for fans of bass, house, and techno. The festival creates an atmosphere where you can dance, connect, and lose yourself in the rhythm. Picture yourself surrounded by fellow music enthusiasts, all united by a love for cutting-edge sounds and unforgettable moments. Waterworks Festival 2026 is more than just a music event; it's a celebration of community, creativity, and the power of music to bring people together. Dive into a day of pure sonic bliss, where every beat resonates with the energy of the city and the spirit of the underground music scene. Get ready to make memories that will last a lifetime at Waterworks Festival 2026!

Waterworks Festival 2026

Gunnersbury Park

Fête de l'Humanité

The Fête de l'Humanité returns from September 11th to 13th, 2026, transforming the Parisian region into a vibrant hub of culture and community. Beyond its historical roots, this festival is a dynamic celebration of music, art, and debate, offering an unparalleled experience. Across multiple stages, attendees will discover an eclectic lineup spanning rock, pop, hip-hop, electronic, and global sounds, featuring both internationally renowned artists and emerging talent. This isn't just a music festival; it's a living, breathing village where live performances intermingle with engaging discussions, theatrical acts, and art exhibitions. Savor diverse culinary delights from around the world, browse unique artisanal crafts, and partake in the spirited atmosphere that defines the Fête. Children’s activities and family-friendly zones ensure enjoyment for all ages, fostering an inclusive environment. Join thousands in a shared experience that champions solidarity, discovery, and unforgettable musical moments under the autumnal Parisian sky. The Fête de l'Humanité is more than an event; it's a movement.

Fête de l'Humanité 2026

Mega

Base Aerienne 217 – Bretigny sur Orge

Houghton Festival

Get ready to groove at Houghton Festival, the beloved music and art celebration nestled in the picturesque Norfolk countryside! Brought to you by the creative minds behind Gottwood, this electronic wonderland offers an unparalleled 72-hour escape into a world of lush woodlands and captivating beats. Prepare to lose yourself in a nonstop party where music, art, and nature intertwine, creating an unforgettable experience. Explore the idyllic landscape, discover hidden stages, and connect with fellow music enthusiasts as you dance the day and night away. With its carefully curated lineup and immersive atmosphere, Houghton Festival promises a weekend of pure sonic bliss and artistic exploration. This is more than just a festival; it's a journey into a realm of sensory delight, where every corner holds a new adventure. So, pack your bags, gather your friends, and prepare to be swept away by the magic of Houghton!

Houghton Festival 2026

Houghton Hall

Rewind Festival South

Step back in time to the most vibrant decade of music and culture at Rewind Festival South 2026. From August 21st to 23rd, 2026, prepare for an unforgettable weekend steeped in pure nostalgia. Experience a dazzling line-up of legendary 80s icons, delivering hit after iconic hit that defined a generation. Expect synth-pop anthems, new wave classics, and timeless rock ballads to fill the air.

Nestled in the stunning grounds of Temple Island Meadows, Henley-on-Thames, the festival offers a picturesque backdrop for your ultimate retro escape. The Rewind atmosphere is legendary – a friendly, vibrant celebration where fancy dress is encouraged, and smiles are infectious. It's a place where generations come together to dance, sing, and relive golden memories. Beyond the main stage, discover pop-up silent discos, engaging street performers, and delicious gourmet food stalls. Elevate your experience with luxurious glamping options, offering comfort amidst the retro revelry. Rewind is also famously family-friendly, ensuring fun for all ages. Don't miss this opportunity to rewind to the 80s, create new memories, and experience the ultimate feel-good festival.

Rewind Festival South 2026

Queen Street Mews

Reggae Land

Prepare to immerse yourself in the vibrant rhythms and infectious good vibes of Reggae Land Festival 2026! This spectacular event is set to transform The Milton Keynes National Bowl into a sun-drenched paradise, overflowing with the soulful sounds of reggae music. Get ready for an unforgettable weekend where the spirit of the Caribbean comes alive, offering a joyous escape for music lovers of all ages. Imagine dancing under the open sky to legendary artists and exciting new talent, all while soaking in an atmosphere of peace, love, and unity. Beyond the incredible live performances, Reggae Land promises a feast for the senses, with an array of authentic Caribbean food stalls serving up delicious island flavors. Explore bustling market areas showcasing unique crafts and merchandise, or simply relax and connect with fellow festival-goers. This is more than just a music festival; it's a cultural celebration, a chance to experience the warmth and energy of reggae in its purest form. Whether you're a lifelong fan or new to the genre, Reggae Land Festival offers a welcoming space to unwind, groove, and create lasting memories. Mark your calendars for August 1-2, 2026, and get ready to feel the rhythm in your soul at this must-attend summer gathering.

Reggae Land Festival 2026

Milton Keynes National Bowl

Mucky Weekender

Cash only

Get ready to groove at the Mucky Weekender Festival, a sensational sensory explosion of music, nature, and community spirit! This electrifying event, predicted to be held around September 2025, promises an unforgettable experience filled with pulsating beats and good vibes. Nestled in the picturesque Vicarage Farm in Winchester, UK, Mucky Weekender is more than just a festival; it's a chance to immerse yourself in a world of sonic delight. The festival typically spans two days, creating the perfect weekend escape with friends. Embrace the camping culture, dance under the stars, and create memories that will last a lifetime. With an impressive lineup of electronic music artists, Mucky Weekender is a must-attend for music lovers and adventure seekers alike. Join the Mucky Weekender community and prepare for a weekend filled with electrifying energy, unforgettable performances, and pure festival magic! Get ready to unleash your inner free spirit and dance the weekend away at the Mucky Weekender Festival! The festival is also 16+.

Mountain festival

Mucky Weekender Festival 2026

Vicarage Farm

Boomtown Fair

Get ready to immerse yourself in the extraordinary world of Boomtown 2026, a festival that transcends the ordinary and plunges you into a sprawling metropolis of music, art, and boundless creativity. Nestled in the heart of Hampshire, UK, this independent festival is a haven for those seeking an unforgettable adventure. Lose yourself in the labyrinthine streets and plazas, where every corner reveals a new surprise and a vibrant community of like-minded souls. The festival's eclectic soundtrack spans genres, from ska and reggae to punk, disco, electronic, and everything in between, ensuring there's always something to get you moving. This festival isn't just about the music, it's about the experience of discovering the most unique and exciting music and art that the UK has to offer. Come discover the freedom and unity that defines Boomtown, where every citizen embarks on a journey of discovery and joy. Whether you're a seasoned festival-goer or a curious newcomer, Boomtown promises an immersive experience that will leave you with memories to last a lifetime.

Spirituality

Boomtown 2026

Matterley Estate

Shambala Festival

Get ready to immerse yourself in a world of creativity and boundless self-expression at Shambala Music Festival 2026! This adventure in utopia invites you to a space where you can play, reinvent, and revitalize your spirit. Held in the scenic Northamptonshire, UK, this four-day fest offers an eclectic mix of electronic, folk, and indie music that promises to ignite your soul. Beyond the music, Shambala is a haven for exploration, offering interactive art installations, thought-provoking workshops, and a vibrant community that celebrates the beauty of being alive. Whether you're dancing under the stars, engaging in a stimulating conversation, or simply soaking in the magical atmosphere, Shambala is a journey into a world where imagination knows no bounds. With a focus on sustainability and independent spirit, Shambala creates an inclusive and responsible space for everyone to thrive. Prepare to return to the world fueled up on inspiration and the invigorating essence of human connection. This 19+ event is your ticket to a unique and unforgettable festival experience.

Reggae Festivals near Flanders