I have the same frustration about Belgium's overregulation, especially because across the border in the Netherlands you're basically allowed to swim anywhere you want!
On a related overregulation note, I visited a playground in Leuven recently where they had to decouple the water toys because regulations requires playgrounds to use drinkable water for water toys, and the eco-warriors were against spilling drinkable water for the playground. Again in the Netherlands they just pump ground water for the water toys in playgrounds