Did you know that in Munich, on Prinzregentenstraße, you can surf on the Eisbach wave? There's a small river called the Eisbach that flows through the English Garden. During the summer, you can also go downstream for a great swim and let the river carry you along. It's not uncommon to spot people in the tram wearing swim trunks, heading back upstream for another round.
But at the specific spot on Prinzregentenstraße, you can try your hand at surfing. However, the wave is best suited for experienced surfers due to the constant current and consistent formation. Consequently, it's not unusual to see people in the city carrying surfboards, which seems a bit peculiar given the absence of a nearby sea.
English Garden is also great with friends for Pre-drinks before going to the club in the sommer.