Cunovo's adjustable wave sits inside the Cunovo Water Sports Centre on a Danube channel that's been hosting kayak slalom racing since it opened in 1996. When Bratislava landed the 2021 ICF World Championships, S2O Design rebuilt the aging course with its RapidBlocs system, letting operators dial in waves, holes, and eddies for anything from beginners to racers. It runs daily from 10am to 8pm with an entrance fee, and the result is a fun, intermediate shred that rewards good edge control. Bring spare fins and a helmet—this is a built course with hard features, not a forgiving backcountry wave.