Concert At Sea

Cashless payments

Lockers

Parking

First aid station

Shuttle service

Lost & found

Food court

Water station

Info desk

Wheelchair access

Vegan/vegetarian

Toilets

Country

Hip Hop

Electronic

Rock

Concert At Sea 2026 invites you to redefine your festival experience from June 25th to 27th. Set against the boundless horizon, this isn't merely a music event; it's an immersive luxury voyage where the ocean itself becomes your vibrant venue. Prepare for an electrifying fusion of genres, showcasing everything from chart-topping pop and high-energy rock to pulsating electronic beats and soulful R&B. Our stages, strategically positioned across multiple decks, host an impressive roster of global headliners alongside vibrant emerging talents. Picture sun-drenched days filled with live performances and exhilarating nights under a canopy of stars. The atmosphere seamlessly blends euphoric concert energy with the serene indulgence of a premium cruise. Beyond the captivating soundscapes, guests can explore world-class amenities, savor gourmet dining, and discover hidden corners of our floating paradise. This unique event transforms a typical festival into an unforgettable, all-inclusive escape. It's where breathtaking sunsets provide the backdrop for your favorite songs and the rhythm of the waves complements every beat. Concert At Sea offers an unparalleled blend of musical discovery and maritime adventure, promising memories that will last long after we dock.

Beach festival

Unique location

Family-friendly

Workshops

Amusement park

Chill zone

Concert At Sea 2026

Huge

PRWF+XM Ellemeet

Dauwpop

Phone charging station

Smoking area

Latin

Punk

Alternative

Dauwpop 2026 opens its gates for an extraordinary celebration of music and culture from May 29th to 30th. Nestled in the scenic, green heart of Hellendoorn, this festival transforms the landscape into an electrifying haven for sound enthusiasts. Attendees can expect a meticulously curated lineup spanning vibrant indie-rock, pulsating electronic beats, soulful pop, and compelling alternative acts. It's an unparalleled opportunity to discover rising stars and witness iconic performances from established international artists across multiple dynamic stages.

Beyond the captivating music, Dauwpop fosters an incredibly warm and inclusive atmosphere, where genuine connections blossom under the open sky. Unique to Dauwpop are its thoughtful art installations, quirky side attractions, and a diverse array of culinary delights, elevating the festival experience beyond just sound. We pride ourselves on a commitment to sustainability, ensuring a greener, more conscious celebration for everyone. This is more than just a festival; it's a vibrant community where shared passion for music, art, and good times unite. Join us at Dauwpop 2026 for an immersive, unforgettable weekend that promises to leave you invigorated and inspired.

Field festival

Camping

Gourmet food & beverages

Dauwpop 2026

Medium

9CQ6+27 Haarle

Into The Great Wide Open

Credit cards accepted

Public Wi-Fi

Jazz

European

Embark on an enchanting journey to Vlieland, Netherlands, for Into the Great Wide Open, a unique pop festival experience. Imagine a family-friendly escape where music, visual arts, film, and the raw beauty of nature blend seamlessly. This isn't just a festival; it's a carefully crafted dream brought to life by pop music enthusiasts. Get ready to be immersed in a world of good music, captivating art installations, thought-provoking films, and the freshest oysters. With Mother Nature as your backdrop, every moment promises a sense of wonder. It's the perfect place to create lasting memories with friends and family. Picture yourself exploring the island, discovering hidden gems, and feeling the magic in the air. Get ready for an unforgettable adventure where music meets art and nature in perfect harmony.

City festival

Forest festival

Eco-friendly

Culture/Arts

Into the Great Wide Open 2026

Vlieland Island

Kamping Kitsch Club Holland

Step into a world where nostalgia reigns supreme at Kamping Kitsch Club Holland 2026, a one-day spectacle on August 22nd that promises an unforgettable journey through time. Set against a vibrant Dutch landscape, this festival is a boisterous celebration of everything delightfully kitsch. Expect an electrifying lineup featuring guilty pleasures, classic pop anthems, sing-along schlagers, and the most infectious dance beats that will transport you straight back to your favorite decades. Beyond the main stages, discover hidden corners brimming with quirky entertainment, from eccentric fashion shows to unexpected cabaret acts. The atmosphere is contagiously joyful, encouraging attendees to embrace their inner maximalist with outlandish costumes and a spirit of carefree abandon. Indulge in an array of nostalgic delights, from classic fairground food to creatively themed cocktails. Kamping Kitsch Club isn't just a festival; it's a full-blown immersive experience where the only rule is to have as much fun as humanly possible. Prepare to dance, laugh, and sing your heart out in a vibrant tableau of retro extravagance.

Lake festival

Kamping Kitsch Club Holland 2026

Kombikart Circuit "The Landsard"

Helldorado

Other

Prepare for an electrifying odyssey into the heart of rock at Helldorado 2026, Eindhoven's premier musical showdown! This isn't just a festival; it's a full-throttle, one-day explosion of sound and fury, set to ignite the iconic Klokgebouw. Brace yourself for an epic lineup of twenty powerhouse bands, each poised to unleash their raw energy across three dynamic stages. From the moment the first guitar riff tears through the air, you'll be immersed in a world where heavy beats and soaring vocals reign supreme. Helldorado offers an unparalleled indoor experience, creating an intimate yet explosive atmosphere for every rock enthusiast. Discover a meticulously curated selection of genres, spanning hard rock, punk, metal, and beyond, featuring both legendary acts and the freshest faces in the scene. Beyond the music, revel in the vibrant crowd, forge new connections, and soak up the collective energy that only a true rock festival can deliver. Mark your calendars and get ready to surrender to the rhythm in Eindhoven – where the spirit of rock 'n' roll burns brightest. Helldorado 2026 is calling; answer the call to musical mayhem!

Helldorado 2026

Klokgebouw

Into The Grave

Metal

Get ready to rock in the Netherlands at Into The Grave 2026! This metal festival brings the energy to Leeuwarden during the sunny days of June. Imagine headbanging at the foot of the Oldehove, an iconic unfinished medieval tower. This intimate, two-day experience is a metalhead's dream, offering a chance to see incredible bands up close and personal. Feel the thunderous rhythm, connect with fellow metal enthusiasts, and soak in the vibrant atmosphere. With a lineup that promises to deliver face-melting performances and a setting that's both historic and energetic, Into The Grave is more than just a festival; it's a pilgrimage for those who live and breathe metal. Mark your calendars, grab your tickets, and prepare for an unforgettable weekend of pure metal mayhem. Into The Grave 2026 is where the riffs are heavy, the crowds are wild, and the memories are legendary. Get ready to unleash your inner metalhead!

Into The Grave 2026

Oldehoofsterkerkhof

Come As You Are

Come As You Are 2026 invites you to a one-day celebration of individuality and vibrant sound on October 3rd, 2026. Set against the picturesque backdrop of the historic Riverside Arts Collective grounds, this festival promises an unforgettable autumn experience. Immerse yourself in an eclectic sonic journey, spanning indie rock's raw energy, electronic music's pulsating beats, soulful harmonies, and folk's evocative storytelling.

The atmosphere cultivates genuine connection, encouraging every attendee to embrace their true self without judgment. Beyond the main stages, discover captivating art installations crafted by local artists that spark conversation and wonder. Indulge in a curated selection of gourmet food trucks offering diverse culinary delights to fuel your festival spirit. Explore the artisan market, where unique creations and handcrafted treasures await. Come As You Are is more than just a music festival; it's a vibrant tapestry woven with authentic expression and shared passion. It’s a day to dance freely, connect deeply, and celebrate the beautiful diversity of our community. Mark your calendar for a day where every beat resonates with your soul and every face is a friend. Join us for an unparalleled celebration of music, art, and genuine human connection.

Come As You Are 2026

Small

Hyperspace Collective

Eindhoven Metal Meeting

Cash only

Prepare for an earth-shattering sonic assault as the Eindhoven Metal Meeting returns in 2026! Nestled in the heart of Eindhoven, Netherlands, this legendary festival is renowned for delivering an uncompromised celebration of all things heavy. Step into the hallowed halls of Effenaar, where two stages will ignite with an electrifying array of metal titans and emerging forces. This isn't just a concert; it's a full-throttle experience designed for the most dedicated metalheads. From skull-crushing riffs to guttural vocals, every performance is crafted to leave you breathless and craving more. Dive headfirst into a community united by a shared passion for relentless music and raw energy. The Eindhoven Metal Meeting promises an unforgettable journey through the darkest and most powerful corners of the metal genre. Get ready to headbang until your neck aches and your soul is cleansed by the sheer power of sound. This is where legends are forged and new memories are made amidst a maelstrom of sound. Don't miss your chance to be part of the hardest, most intense metal gathering the Netherlands has to offer. Join fellow enthusiasts for two days of pure metal euphoria!

Eindhoven Metal Meeting 2026

Effenaar

Dominator Festival

Get ready to rumble at Dominator Festival 2026, where the hardcore scene ignites the Dutch landscape! This isn't just a festival; it's an adrenaline-fueled pilgrimage for die-hard enthusiasts of the harder styles. Imagine yourself amidst a deafening sandstorm, the air thick with anticipation as seven extreme formations gear up for an all-out battle for domination. The Rally of Retribution is about to begin, so enter if you dare! Feel the ground tremble as screaming engines roar and smoking exhausts fill the air, all thanks to drivers hungry for victory. Prepare to be swept away by the relentless energy and pounding beats that define this legendary event. Dominator Festival offers a visceral experience where the music is raw, the atmosphere electric, and the memories unforgettable. Gather your friends and prepare for the madness!

Sightseeing

Wellness

Dominator Festival 2026

E3 Strand

Nirwana Tuinfeest

Showers

Escape the everyday and immerse yourself in the vibrant world of Nirwana Tuinfeest, returning from August 14th to 16th, 2026. Nestled in a picturesque, verdant landscape, this festival offers a refreshingly intimate experience, a true garden party for the senses. Discover an eclectic soundtrack spanning indie rock, folk, world music, and electronic beats across multiple thoughtfully curated stages. Beyond the stellar musical lineup, Nirwana Tuinfeest is renowned for its enchanting atmosphere, where art installations weave seamlessly with the natural surroundings. Indulge in an array of culinary delights from local vendors, offering everything from gourmet street food to refreshing craft beverages. The festival fosters a sense of community, encouraging discovery, connection, and spontaneous joy. Whether you're dancing under the stars or exploring hidden corners of the festival grounds, expect an unforgettable weekend. Nirwana Tuinfeest is more than just a festival; it's a meticulously crafted escape designed to nourish your soul and ignite your spirit.

Nirwana Tuinfeest 2026

Jera On Air

Bike rentals & storage

Get ready to rock out at Jera on Air 2026, the Netherlands' premier punk, hardcore, and metalcore festival! Nestled in the charming town of Ysselsteyn, this open-air extravaganza is gearing up to deliver an unforgettable experience for music lovers. With a crowd of 8,000 attendees, this festival has grown from a small gathering to a full-fledged event with something for everyone. Picture yourself diving into the music across two massive festival tents, chilling out in dedicated relaxation zones, and fueling up at a diverse food court offering culinary delights. Don't miss out on the unique Punkbrockbar, a must-visit spot for fans of the genre. Jera on Air provides a stellar opportunity to discover new sounds, connect with fellow music enthusiasts, and soak in the electric atmosphere. With camping options available, you can fully immerse yourself in the festival experience. Get ready to create memories that will last a lifetime!

Glamping

Jera on Air 2026

Parookaville

Grocery store

Get ready to immerse yourself in the captivating world of ParookaVille! This annual electronic music mecca transforms Weeze, Germany, into a vibrant city pulsating with energy and creativity. Inspired by the legend of Bill Parooka, the festival is an artistic haven where freedom, love, and pure self-expression reign supreme. Step through the gates and discover a unique realm where music unites souls and connections are forged in the heart of the dance floor. Let the rhythm guide you through a spectacular landscape filled with mesmerizing stages, mind-blowing visuals, and an electrifying atmosphere. Whether you're a seasoned raver or a first-time visitor, ParookaVille promises an unforgettable experience that will ignite your senses and leave you craving more. Prepare to be swept away by the magic and become part of the vibrant citizen community of ParookaVille!

Park festival

Sports

Swimming pool

Spirituality

ParookaVille 2026

Mega

Weeze Airport

Zwarte Cross

Reggae

Blues

Gear up for an unforgettable mashup of motocross mayhem and musical madness at Zwarte Cross 2026! Nestled in Lichtenvoorde, Netherlands, this isn't your average festival; it's a high-octane collision of stunts, theater, humor, and pure, unadulterated craziness. Picture yourself amidst the roar of engines, the pulse of rock and blues, and a spectacle of bizarre performances that will leave you wide-eyed and grinning. Imagine revving into a world where motocross meets music in the most unexpected ways. Beyond the adrenaline-pumping action, Zwarte Cross offers a family-friendly atmosphere with camping options, turning your festival visit into an immersive adventure. As the sun sets, the music ignites, and the camaraderie of fellow thrill-seekers fills the air, Zwarte Cross becomes a vibrant celebration of life's wild side. Get ready to laugh, cheer, and dance your heart out as you dive headfirst into this truly unique experience. This is where memories are made, limits are tested, and the spirit of adventure comes alive! It is going to be the craziest motocross, music and madness adventure!

Movies/Theatre

Gaming

Zwarte Cross 2026

The Achterhoek

Sjock Festival

Experience three days of unadulterated rock'n'roll fury at Sjock Festival 2026, set to ignite Belgium from July 10th to 12th. This legendary gathering isn't just a festival; it's Europe's most authentic rock'n'roll sanctuary. Prepare for an electrifying sonic assault spanning blistering garage punk, gritty psych-rock, classic rockabilly, and alternative anthems, delivered by both revered legends and exciting new voices. Sjock prides itself on an intimate, no-frills atmosphere, where the music takes center stage and the passion is palpable. It's a true pilgrimage for devotees of raw, unfiltered sound and explosive live performances. Beyond the roaring guitars and thundering drums, discover a vibrant community of kindred spirits united by their love for independent music. You'll find delicious local food and refreshing drinks, all contributing to an unforgettable summer weekend. This is where artistic integrity trumps mainstream trends, offering a genuine, unvarnished festival experience. Escape the ordinary and immerse yourself in the relentless, high-octane energy. Mark your calendars for Sjock Festival 2026 – prepare to witness rock'n'roll as it was always meant to be.

Sjock Festival 2026

Haldern Pop

Haldern Pop returns for its 43rd edition, transforming the idyllic Lower Rhine village of Haldern into a haven for discerning music lovers from August 5th to 8th, 2026. This intimate festival, renowned for its meticulously curated lineup, offers an unparalleled experience far removed from the mainstream. Expect an eclectic blend of indie rock, folk, alternative, and experimental sounds, showcasing both established artists and emerging talents from across the globe. The magic of Haldern Pop lies in its unique atmosphere: think charming village streets, a beautiful lake setting, and a palpable sense of community among attendees and artists alike. Beyond the exceptional music, discover thought-provoking art installations, spontaneous performances, and delicious local food and drink. It's a festival where you truly connect with the music and your surroundings, fostering a sense of discovery and shared passion. Escape the ordinary and immerse yourself in the thoughtful, soulful world of Haldern Pop. This isn't just a festival; it's an annual pilgrimage for those who appreciate music with depth and soul, unfolding within a truly picturesque German landscape.

Haldern Pop 2026

Lohstraße 26

Graspop Metal Meeting

Folk & Traditional

Get ready to bang your head and unleash your inner metalhead at Graspop Metal Meeting 2026! This legendary festival is a pilgrimage for metal fans worldwide, bringing together 150,000 passionate souls for an unforgettable weekend of pure metal mayhem. Nestled in the heart of Dessel, Belgium, Graspop is more than just a festival, it's an immersive experience where the music is loud, the energy is electrifying, and the camping is legendary. Whether you're a seasoned headbanger or a newcomer to the metal scene, you'll find your tribe here. Picture yourself surrounded by fellow metalheads, rocking out to iconic bands, and creating memories that will last a lifetime. So grab your tent, prepare for four days of non-stop intensity, and get ready to immerse yourself in the world of hard rock, punk, metal, and everything else that shreds. Graspop Metal Meeting is calling your name – answer the call and prepare for an epic metal journey!

Graspop Metal Meeting 2026

Kastelsedijk

Rampage Open Air

Get ready to lose your mind at Rampage Open Air 2026, where over 300 artists across six electrifying areas promise a weekend of non-stop bass-dropping madness! This isn't just a festival; it's an adventure playground for the senses. Beyond the music, adrenaline junkies can dive into five colossal fair rides and witness the spectacle of the biggest skate ramp in Europe. For those seeking a breather, the marketplace offers a chill vibe with body & face painting, and unique jewelry finds. Indulge in classic festival eats and a variety of food truck delights that cater to every craving, including vegan and veggie options. With space for 10,000 campers, the party doesn't stop, featuring three swimming pools and two camping stages hosting both national and international artists. After dark, the free, fully-covered silent disco after-party keeps the vibes alive, and be ready to enjoy a movie at the open-air cinema, or enjoy fresh barbecue, breakfast, and shopping at the camping area. Prepare for an unforgettable weekend where music, thrills, and community collide in an explosion of Rampage energy!

Rampage Open Air 2026

Kristalpark

Live /s Live

Get ready to ignite your senses at Live is Live 2026, a four-day explosion of music and vibrant energy from June 26th to 29th! Nestled in the picturesque De Schorre Provincial Park in Boom, Belgium, this festival is a pilgrimage for music lovers seeking an eclectic mix of rock, indie, and electronic beats. Imagine dancing under the open sky, surrounded by stunning natural beauty and a community of fellow music enthusiasts. Live is Live is more than just music; it's an immersive experience featuring art installations, gourmet food trucks, and interactive workshops. Discover emerging artists alongside legendary headliners, creating unforgettable moments with every performance. What sets Live is Live apart is its commitment to sustainability, weaving eco-friendly practices throughout the festival. Prepare to be captivated by the unparalleled atmosphere, where creativity and connection flourish. This is where memories are made, friendships are forged, and the spirit of live music truly comes alive. Don't miss your chance to be part of the magic. Secure your tickets now for Live is Live 2026!

Live is Live 2026

Middenvijver

Gladiolen Festival

Gladiolen Festival 2026 invites you to a weekend where music blooms as vibrantly as its namesake flowers. Mark your calendars for May 22nd and 23rd, 2026, as our picturesque parkland venue transforms into an auditory wonderland. Experience an exhilarating blend of sound, from the pulsing rhythms of indie rock and alternative pop to the soulful depths of folk and innovative electronic soundscapes. Our curated lineup features both globally renowned headliners and groundbreaking emerging artists, ensuring fresh discoveries at every turn.

Immerse yourself in an atmosphere of creative energy and shared joy, set against a backdrop of stunning natural beauty. Throughout the festival grounds, vibrant gladiolus-inspired art installations and fragrant floral displays will enchant your senses. Beyond the stages, explore a diverse array of gourmet food stalls, artisan markets, and interactive experiences designed to spark wonder. This isn't just a festival; it's a vibrant community gathering where friendships are forged and memories blossom under the spring sky. As dusk settles, watch the park come alive with mesmerizing light shows, amplifying the magic of each performance. Gladiolen Festival 2026 promises an unforgettable escape, a celebration of music, art, and nature that nourishes the soul. Join us for a truly immersive experience that will leave you inspired and invigorated long after the final note fades.

Gladiolen Festival 2026

Boekel 8

Vestrock

Religious

Asian

Get ready to rock on a Dutch island at Vestrock 2026! This boutique festival, nestled in the heart of Hulst, Netherlands, offers an unforgettable experience with a cozy and intimate atmosphere. Imagine yourself surrounded by the charming setting of a fortified town as you immerse yourself in a vibrant celebration of music, theatre, and community. From captivating performances on multiple stages to a dedicated day of fun for children, Vestrock has something for everyone. The festival's convenient campsite, just a short stroll from the grounds, adds to the overall ease and enjoyment of the weekend. Discover new favorite artists, reconnect with friends, and create lasting memories at this hidden gem of a festival. Vestrock combines the thrill of live music with the charm of a unique island setting, making it the perfect getaway for music lovers of all ages.

Vestrock 2026

Eiland Buitenvest

Holland International Blues Festival

The Holland International Blues Festival returns to the picturesque village of Grolloo for its highly anticipated 2026 edition. On June 19th and 20th, blues enthusiasts from across the globe will converge to celebrate the raw power and soulful artistry of this iconic genre. This acclaimed festival meticulously curates a lineup that spans the rich tapestry of blues music, from gritty Delta rhythms to sophisticated Chicago stylings and electrifying contemporary interpretations. Expect to witness legendary pioneers alongside the genre's most exciting modern innovators, delivering performances that resonate deep within the soul.

Beyond the stellar musical roster, the festival cultivates an intimate and authentic atmosphere, transforming the idyllic Dutch landscape into a vibrant hub of musical camaraderie. The air will hum with blistering guitar solos, powerful vocal harmonies, and the undeniable groove that only live blues can provide. Attendees are invited to immerse themselves in a shared passion, forging connections over timeless melodies and groundbreaking new sounds. With its unwavering commitment to musical excellence and a palpable sense of community, Holland International Blues Festival stands as a beacon for true blues aficionados. It's more than just a concert; it's a profound journey into the heart of a musical tradition that continues to inspire and evolve. Prepare for two unforgettable days where the spirit of the blues reigns supreme, leaving an indelible mark on every attendee. Experience world-class artistry in a setting that perfectly amplifies the genre's rich heritage.

Holland International Blues Festival 2026

The Blues Village

Bospop

African

Get ready to rock out at Bospop 2026, the beloved pop-rock festival that has been grooving since 1980! Nestled in the charming town of Weert, Netherlands, this cozy event promises a weekend filled with electrifying music and unforgettable memories. Bospop started as a small gathering for local amateur bands, but has blossomed into a full-blown music spectacle featuring both established and rising international artists. Mark your calendars for July 10-12, 2026, and prepare to immerse yourself in a vibrant atmosphere where the spirit of pop and rock collide. Whether you're a die-hard fan or new to the scene, Bospop invites you to experience its unique blend of old-school charm and contemporary sounds. Set against the backdrop of Weert Noord, this all-ages festival offers not only an incredible lineup, but also the chance to camp under the stars and connect with fellow music lovers. Don't miss out on this must-attend event that celebrates the power of music and community!

Bospop 2026

Weert Noord

Rock Olmen

Rock Olmen returns on July 24th and 25th, 2026, igniting the summer with two days of unadulterated musical passion. Nestled in the picturesque surroundings of Olmen, this festival transforms the landscape into a vibrant sanctuary for rock aficionados. Attendees will experience a dynamic spectrum of sound, from the gritty riffs of hard rock and the anthemic choruses of alternative to the raw energy of punk and classic rock legends. The expertly curated lineup promises both established titans who have shaped the genre and exciting new voices ready to leave their mark. Each stage, meticulously designed for optimal acoustics, ensures every chord strikes deep and every drumbeat resonates through the crowd.

Beyond the blistering performances, Rock Olmen cultivates an electrifying yet communal atmosphere, where shared love for music binds everyone together. Explore a diverse array of local food vendors offering regional delicacies, perfectly complementing the festival's authentic spirit. Discover hidden gems within the festival grounds, from artisan markets to interactive art installations that add another layer to the experience. This isn't merely a concert; it's a pilgrimage for those who live and breathe rock and roll. Prepare for unforgettable nights under the stars, where the echoes of legendary anthems mingle with the promise of new musical discoveries. Mark your calendars for a weekend where the power of live rock music truly takes center stage, leaving an indelible impression.

Rock Olmen 2026

PitFest

PitFest 2026 ignites the summer music season from June 4th to June 6th, promising three days of unparalleled sonic exploration. Nestled amidst the picturesque rolling hills of Willow Creek Valley, this festival is a true pilgrimage for devotees of raw energy and groundbreaking sound. Our stages will pulsate with an eclectic mix, predominantly spanning the heavy-hitting spectrums of hard rock, metalcore, and punk, alongside a carefully curated selection of cutting-edge alternative and indie acts pushing musical boundaries. Beyond the head-banging anthems, attendees will discover intimate acoustic sets and late-night electronic grooves in our dedicated discovery zones, ensuring every musical craving is met.

The atmosphere at PitFest is notoriously vibrant and inclusive, fostering a true sense of community among thousands of fellow music lovers. Wander through our immersive art installations scattered across the festival grounds, offering visual feasts to complement the auditory journey. Indulge in an array of gourmet street food from local vendors, ensuring your taste buds are as thrilled as your ears. Adding to the unique experience, we're introducing "The Echo Chamber," a hidden stage featuring spontaneous collaborations and secret performances. This isn't just a festival; it's a dynamic confluence of sound, art, and camaraderie, designed to leave an indelible mark on your soul. Join us at PitFest 2026 for an unforgettable weekend where legendary performances meet a spirit of discovery.

Rock Festivals near Amsterdam