Izvir Dobličice (Dobličko jezero spring)
The green spring lake of the Dobličica is Bela krajina's most important spring and water-supply source. Its sump was first explored to 45 m; over New Year 2002/2003 a joint team of Jamarski klub Železničar, Potapljaški klub Bela krajina and JD Dimnice found a crack at 24 m opening into a huge vertical shaft, reaching 67 m, then 100 m and finally 121 m on mixed gas – at the time Slovenia's second-deepest siphon. The spring is one of the very few places where the black olm lives; the first live specimen in the wild was found here by divers in February 2004.
Tiefe: 0–121 m