Cemun and Obrh springs (Lake Cerknica)
Water that sinks in the Loško polje rises again in the Cemun and Obrh springs and flows through the Jezerščica into intermittent Lake Cerknica. Both springs are basins where water wells up from many small holes in the gravel bottom; there are no large underwater caves, as the entrances are filled with gravel. The dive starts in Cemun's big pool, about 5 m deep, follows the stream down to the confluence and then works upstream against moderate current in the Obrh. In spring at medium-high water the channel is full of brightly coloured plants and small invertebrates, while fish are very rare.
Tiefe: 0–5 m