Lake Leißnitzsee, along with Lakes Glower See and Schwielochsee to the south are fed by the river Spree. Together they form a connected water surface. There are various bathing spots along the shoreline of Lake Leißnitzsee. One of these bathing areas is located directly in the village Leißnitz. Access is provided via a path branching off the main road. The bathing area features a big sunbathing lawn, a toilet and parking is also available. There is a jetty along the reed zone that reaches far into the water.
On the northern end, there is a hand-operated ferry crossing the Spree between Leißnitz and Ranzig. There is a snack bar at the ferry house.