As the days get longer and the temperature rises, it's time to fill the Wijde Wellen with dance, music, and happiness: Onderstroom Festival 2026.
Unlike in previous years, this year's festival coincides with the well-known Harderwijk Aaltjesdagen. Together, these two events will push each other to an even higher level!
During the festival, various stages will feature a variety of acts that will get you dancing and having a good time. DJs, bands, and theater will be there too.
This year, there's also a full children's program on Saturday afternoon, making Onderstroom Festival 2026 the music festival for the whole family. But don't forget to arrange babysitting in advance so moms and dads can let loose just like in the old days.
