Known locally as Vlna pod Zámkem, this wave sits in an old slalom training channel right next to the castle in Brandýs nad Labem on the Elbe, and it holds the honor of being the first standing river wave built in the Czech Republic, back in 2013. A crew led by Jan Maršík built it themselves after consulting wave designers from Austria, Canada, and Germany, drawing inspiration from Munich's famous Eisbach. Unlike a lot of newer parks, the spoiler here is fixed rather than adjustable, so the wave really only turns on when flow peaks in the late afternoon, typically from around 4 to 7pm. It's a slow, forgiving wave that's easy on beginners, and the local Surfwave Brandýs nad Labem crew runs board rentals and keeps the scene going.