Divje jezero (Wild Lake)
A small emerald lake below a cliff near Idrija that is really the mouth of a steep, water-filled karst shaft. Cave divers have explored the siphon since 1957; in 1995 they reached 124 m, and it has now been explored to about 160 m. The water stays at 7–10 °C, olms live in the cave, and after heavy rain the spring can surge to around 60 m³/s. Several divers have died exploring its depths, so this is purely an extreme exploration site.
Tiefe: 0–160 m