Munich is the river surfing capital of the world, because it's the birthplace of this unusual sport. And while the city and its inhabitants are not world-famous for being trendy and hip, this place certainly is.
When you meet men in wet suits, walking around barefoot and carrying surf bords, then you are very close to one of the coolest places in Munich. Where else would you find people surfing right in the middle of a city park?
Nevermind the weather, people surf all year long.