Surfing in the middle of an inland city? Why not! There are even rather powerful waves (about one meter high), so if like to surf and aren't a strict salt water-only purist, check out the surfer's site on the small, man-made Eisbach river. Surfing here has been officially permitted since 2010.
Wikipedia https://en.wikipedia.org/wiki/Eisbach_(Isar)
Official Website https://www.muenchen.de/freizeit/sport/surfen
Address 20 Prinzregentenstraße, München 80538, Germany
Coordinates 48°8'36.546" N 11°35'15.931" E