Slovenia · about 1 km from Vrhnika
Veliko okence (Retovje)
- Max depth25 m
- CertificationFull cave
Diving and fills
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What it looks like
Cave Diving Slovenia - Veliko Okence - Suhadolca - Malo Okence
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Videos and posts
From other divers, via YouTube, Instagram and Facebook. They only load when you click; after that, Google's or Meta's privacy rules apply.
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Other people's footage, not advice: how someone else dives here says nothing about what suits your team. Dive within your training.
The dive
Veliko okence is one of the two strongest springs of Retovje, a steephead valley where the Velika Ljubljanica rises. After almost 1 km it joins the Mala Ljubljanica (from the Močilnik springs) to form the Ljubljanica.
Profile and sections
Veliko okence is one of the two strongest springs of Retovje, a steephead valley where the Velika Ljubljanica rises. After almost 1 km it joins the Mala Ljubljanica (from the Močilnik springs) to form the Ljubljanica. The water temperature is not published.
The Retovje springs and sumps were first studied in 1939. A Slovenian dive school's cave team dives here year-round.
- Depth and profile
- Explored to 270 m in length and -25 m
- Configuration
- No published details on passage size or restrictions.
- DPV: Not DPV-suitable
- Short cave (270 m), and motorised craft are banned in Slovenian caves: electric scooters only for sump research (ZVPJ art. 18).
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Configuration unknown — research beforehand
- Goes down to 25 m (trimix or deco may be needed)
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
In the Retovje valley near Verd, just south of Vrhnika; the springs lie on a circular walking route. Parking and entry point: ask Slovenian cave divers.
Around Veliko okence (Retovje)
FillsNo fill station known nearby
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Caves nearby6 within 60 km
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