Local recreation area at the gates of Bautzen.
Lake Olba is a former open-cast lignite mine and now a bathing lake in the Upper Lusatian heath and pond landscape between the villages of Wartha and Kleinsaubernitz in the municipality of Malschwitz, Saxony. The name is derived from the Oberlausitzer Braunkohlen-Aktiengesellschaft, which operated the open-cast mine.
