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Croatia

Big Cave / Cathedral (Cres)

  • CertificationOpen water / no overhead

The dive

There is rich growth around the entrance. At the back a layer of fresh water lies against the ceiling, a striking sight. In the lower part of the wall next to it is another cave (Shark Cave).

Profile and sections

There is rich growth around the entrance. At the back a layer of fresh water lies against the ceiling, a striking sight. In the lower part of the wall next to it is another cave (Shark Cave).

It is one of the largest caves in the area; the centre also calls it 'the Cathedral' and rates it suitable for beginners.

Depth and profile
Cave ~40 m long, 15 m wide and 10 m high; depth not published.
Configuration
Roomy hall: all configurations.
DPV: Not DPV-suitable (estimate)
Short cave; no point.
Who can dive where
  • CaveAt least Open water / no overhead
  • Whole caveConfigurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
Through a dive centre or guide

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

By boat with Dive Center Krk, at the 'Loreley' rock off Cres. Exact spot not published.

Plan your route ↗

Around Big Cave / Cathedral (Cres)

FillsNo fill station known nearby
Other sites1

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Sources, sharing and disclaimer

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Certification requirements, configurations and trimix depths are estimates for planning. Always check them locally and dive within your training. Compiled from web research (Garašić EGU 2017, Subterranea Croatica 2019, HGSS 2014, Wikipedia, stranypotapecske.cz, wannadive.net, dive centres, Kornati NP, Croatian Ministry of the Sea, KBC Rijeka, OXY, news; Sept 2026); for the Kvarner the pages of Dive Center Krk, JU Priroda and Wikipedia (Oct 2026). Pins come from Wikipedia, stranypotapecske.cz and wannadive.net; five springs have a pin from OpenStreetMap, one site has none (yet). ~ = estimate. Rules change — check locally.