Often overshadowed by larger, more well-known parks/lakes, Lietzensee is an accessible, charming,…read moreand soothing urban retreat, with a cafe on the north end, a walking/jogging/riding path around the entire lake, several play areas, and plenty of grass for sunbathing. The weeping willows and other trees lining the lake are particularly notable and, in the fall, quite stunning.
Close to the ICC S-bahn and the Neuekantstrasse bus stops.
If it's cold enough, it's a popular place to ice skate. When it's warmer, the grass in front of the monument on the east side (I forget the name) seems to be the accepted area for topless or "smaller-bottomed" sunbathing.