Croatia
Crveno jezero
Info · exploration
Expeditions only: the water lies ~250 m below the rim and can only be reached by a long rope descent.
- Max depth287 m
- CertificationFull cave
- SpecialRopework
Diving and fills
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Now at Crveno jezero
What it looks like
Under the Red Lake Imotski 2017 - Frederic Swierczynski@New Video Red Lake Imotski 2017 - Frederic Swierczynski (9 days expedition tour)
All 2 videos and posts
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.
Under the Red Lake Imotski 2017 - Frederic Swierczynski@New Video Red Lake Imotski 2017 - Frederic Swierczynski (9 days expedition tour)
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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
A collapse doline holding a lake of ~16 million m³ of water.
Profile and sections
A collapse doline holding a lake of ~16 million m³ of water.
The first explorations went through the Croatian Speleological Federation; later Dinaridi (DDISKF), for whom cave diving is the main speleological activity, worked with international teams. International cave-diving expeditions came here in 1997–1998 ('Crveno jezero 98') and 2017; hydrological measurements were made in 2013–2015.
- Depth and profile
- Water depth avg ~245 m, max ~281–287 m; total depth ~530 m; inflow passage of ~30 × 30 m on the east side at -175 m
- Configuration
- Open collapse doline with a huge water volume; only for expeditions with rope work and deep trimix/CCR.
- DPV: Not DPV-suitable (estimate)
- Open shaft; no point.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 287 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
At the western edge of Imotski. The water surface lies roughly 250 m below the rim (total depth ~530 m, water depth ~280 m): reachable only by a long rope descent.
Around Crveno jezero
FillsNo fill station known nearby
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