In the location's words:

The Misburg outdoor pool is one of the largest outdoor pools in Hanover and super popular. There is a huge swimming pool, a cool slide and plenty of space to relax. Perfect for swimming a few laps after work or spending the whole day on the sunbathing lawn.

Tip: Afterwards, it's worth making a detour to Misburger Wäldchen - or grab an ice cream at the ice cream parlor on Waldstraße.