Lom Slověnický mlýn (COP)
Flooded quarry near Horní Slověnice, about 6 km from Lišov and 20 km from České Budějovice, built into an activity park. Its signature feature is a huge caisson entered at about 9-10 m with two dry floors, lighting and regularly renewed air, which has hosted record underwater stays (102.5 hours in 2015). Maximum depth is 28 m but the interesting part is above 12 m; visibility ranges from 0.5 to 4 m. There is a summer kiosk, toilets, a shower and a compressor.
depth: 0–28 m