Steinsee

The Steinsee is an idyllic lake that invites you to swim and linger in shady places. There is a lido with a children's playground, kiosk, sanitary facilities and a restaurant.

Wikipedia (Steinsee (Niederseeon), 2023-03-25):
de.m.wikipedia.org/wiki/Steinsee_%28Niederseeon%29
Wikipedia (list of landscape protection areas in the district of Ebersberg, 2023-03-25):
de.m.wikipedia.org/wiki/Liste_der_Landschaftsschutzgebieten_im_Landkreis_Ebersberg
“LSG Steinsee, Moosach, Doblbach, Brucker Moos and surroundings … LSG-00406.01 … 1987...”

Bavarian Red Cross (Water Rescue Moosach-Steinsee, 2023-03-25):
moosachsteinsee.wasserwacht.de

There has been a family and beach pool on the north bank of the lake since 1934. It has lawns with large trees and a view of the lake, a children's playground and kiosk, parking spaces, sanitary facilities and a water rescue station. The family pool is connected to a restaurant with a lakeside terrace. This makes the lake a popular destination. There is free access to the Steinsee on the shady south-eastern bank, where there are further bathing opportunities. Source and further information
de.m.wikipedia.org/wiki/Steinsee_(Niederseeon)