overview opening hours admission This natural area for sports and recreational use recently reopened to the public after being revitalized. Visitors can enjoy a naturally filtered swimming lake with an area of 5,570 m2 in the shape of an irregular oval, up to 3.25 m deep in the swimming area and up to 1 m deep in the non-swimming area. Facilities include changing rooms, showers, toilets, a clubhouse, and refreshment stand. opening hours june mon—thu 10:00—19:00 fri 10:00—20:00 sat 9:00—20:00 sun 9:00—19:00 july—august mon—sun 9:00—20:00 september mon—fri 10:00—18:00 sat—sun 9:00—18:00 more about opening hours admission basic full day ticket 180 CZK reduced full day ticket 120 CZK family full day ticket 420 CZK more about admission admission basic full day ticket 180 CZK reduced full day ticket 120 CZK family full day ticket 420 CZK Admission fees in detail opening hours june mon—thu 10:00—19:00 fri 10:00—20:00 sat 9:00—20:00 sun 9:00—19:00 july—august mon—sun 9:00—20:00 september mon—fri 10:00—18:00 sat—sun 9:00—18:00