Croatia
Vrulja (Brela)
- Max depth161 m
- CertificationCavern
- Water temperature≈ 15–19 °Cestimated, no reports yet
Diving and fills
Dive here with
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Fills nearby
- Fill stationDiving Center Pongo (Primošten)Air, nitrox (30–36%), oxygen and helium (ask); stage cylinders and 3-litre rebreather cylindersRoute ↗
The dive
In Vrulja bay at Brela, fresh water flows out of a submarine spring (vrulja). It rises to the surface and turns the sea azure. In the mixing layer visibility drops to 2–3 m; below it, it averages ~18 m.
Profile and sections
In Vrulja bay at Brela, fresh water flows out of a submarine spring (vrulja). It rises to the surface and turns the sea azure. In the mixing layer visibility drops to 2–3 m; below it, it averages ~18 m. The water is 15–19 °C.
Per HGSS (2014) this is the world's deepest active submarine spring.
- Depth and profile
- Cave with freshwater outflow at -28 m; normal dives to -40 m; the spring continues to -125 m (HGSS 2014) or -161 m (Garašić 2017)
- Configuration
- All configurations for the cave at -28 m; deeper is trimix-expedition only.
- DPV: Not DPV-suitable (estimate)
- Short cave with a deep shaft; no point.
Who can dive where
- At least Cavern
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 161 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
Boat only; the Poseidon dive centre in Baška Voda gets there in ~15 min (boat for 8).
Around Vrulja (Brela)
Fills1 fill station · 55 km
Diving Center Pongo (Primošten)
Raduča ul. 11, 22202 Primošten
Air, nitrox (30–36%), oxygen and helium (ask); stage cylinders and 3-litre rebreather cylinders
Not stated — ask
Dive centre with two Bauer compressors and a nitrox and trimix blender; TDI tech courses up to normoxic trimix and gas blender.
Drive times from Knin: we don't know this site's exact spot.
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