Slovenia
Kačna jama (Divača)
Info · exploration
Information only: the sumps lie kilometres into the cave, beyond a ~180 m shaft, and are dived only by expeditions.
- Max depth30 m
- CertificationFull cave
- SpecialRopework
Diving and fills
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Now at Kačna jama (Divača)
The dive
Kačna jama is one of the seven known caves that reach the underground Reka, which flows some 21 km from Škocjanske jame towards the Timavo springs.
Profile and sections
Kačna jama is one of the seven known caves that reach the underground Reka, which flows some 21 km from Škocjanske jame towards the Timavo springs. The olm lives here.
A Czech team led by Tomáš Roth has worked here since 2005, with major expeditions of about sixty cavers and two underground camps. In 2025 the divers passed a ~500 m sump and reached sumps 4 and 5, in the Povirska dvorana. In 2026 the same team went upstream from the cave Jama 1 v Kanjaducah through ~350 m under water into a river gallery of almost 500 m.
Practical: information only.
- Depth and profile
- Short first sump, second ~500 m, in 2025 to sumps 4 and 5; depth not published. From Jama 1 v Kanjaducah a sump was explored to 30 m in 2026 (InDEPTH 2026).
- Configuration
- All gear goes down a ~180 m shaft and kilometres through the cave: light expedition configuration (estimate).
- DPV: Not DPV-suitable
- Electric scooters are only allowed in Slovenian caves for sump research (ZVPJ art. 18); not for visitors.
Who can dive where
- At least Full cave
- Configurations: Sidemount / CCR
- Configuration unknown — research beforehand
- Goes down to 30 m (trimix or deco may be needed)
- Ropework (SRT) needed
- Experienced divers only
This is how the planner decides who in your team may dive this cave. Rules your own trip adds (organizer, a mail, the AI) show with your trip.
How to get there
Near Divača on the Kras. First a ~180 m shaft, then ~7 km of dry cave with crossings of the Reka and lakes by boat, to the camp by the sumps.
Around Kačna jama (Divača)
FillsNo fill station known nearby
News
Access and rules change: check what applies locally right before your trip. Source: GDELT Project and the news feeds of diving magazines. Search for more news ↗ Searched automatically, last on 11 Nov 2026.
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