Until 1947, this was the site of the Mavrovo Basin through which the Mavrovo River flowed. The river was dammed and then it became the artificial lake it is today, a major attraction of the national park. It has excellent swimming, boating, and fishing in the summer months and freezes over in winter. An additional point of interest is the half-submerged church in the lake. Multiple villages sit at the lake's shore, including Leunovo, Mavrovi Anovi, Mavrovo, and Nikiforovo.