Provence · about 7 km from Cassis
Grotte Cosquer
Closed to divers
Diving banned: archaeological monument, entrance closed with a stainless-steel grille (since 2015) and a prefectoral ban (2013) on diving and anchoring within 500 m of the Pointe de la Voile.
- Max depth37 m
- CertificationFull cave
- SpecialSidemount
Diving and fills
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Fills nearby
- Fill stationCassis Calanques PlongéeNitrox and trimix (tech and CCR courses); which gases visitors can have filled, and to what pressure: askRoute ↗
- Fill stationPlongée Tek MarseilleFills diluent (air, trimix) and O₂ for its own CCR and trimix students; fills for visitors: askRoute ↗
- Fill stationKraken Plongée (La Ciotat)Air, nitrox, oxygen and helium; fills at 230 and 300 barRoute ↗
Now at Grotte Cosquer
What it looks like
Cosquer Méditerranée, fascinante plongée dans la préhistoire Objectif Grotte Cosquer - Plongée dans le Grotte Cosquer à l’ère glaciaire
All 5 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.
Cosquer Méditerranée, fascinante plongée dans la préhistoire Objectif Grotte Cosquer - Plongée dans le Grotte Cosquer à l’ère glaciaire
- Facebook
OsuInstitutPytheas
- Facebook
BFMMarseille
- Facebook
InaHistoire
Search for more onYouTube ↗Instagram ↗Facebook ↗
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 Palaeolithic cave with paintings and engravings. The entrance was drowned by the sea-level rise after the last ice age. The cave is a protected historic monument; a second entrance (1992) was long kept secret.
1 earlier accident or incident has been reported at this cave. Read what happened ↓
Profile and sections
A Palaeolithic cave with paintings and engravings. The entrance was drowned by the sea-level rise after the last ice age. The cave is a protected historic monument; a second entrance (1992) was long kept secret.
Practical: to see the cave, visit the Cosquer Méditerranée replica in Marseille (open since June 2022).
- Depth and profile
- Entrance at -37 m; narrow 175 m access passage to partly dry chambers
- Configuration
- Not applicable: diving banned.
- DPV: Not DPV-suitable
- Diving banned.
Who can dive where
- At least Full cave
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- Goes down to 37 m (trimix or deco may be 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
By sea only, at the Pointe de la Voile (Cap Morgiou). Access only for scientific teams authorised by the Ministry of Culture.
Around Grotte Cosquer
Fills3 fill stations · nearest 7 km
Cassis Calanques Plongée
Port de Cassis, 13260 Cassis
Nitrox and trimix (tech and CCR courses); which gases visitors can have filled, and to what pressure: ask
Open all year; ask for hours
Dive centre with a boat at Cassis harbour (formerly Centre Cassidain de Plongée), inside the Parc national des Calanques; tech diving (trimix, rebreather) and CCR courses. Close to the Bestouan and Port-Miou. CCR support and sofnolime: ask.
Plongée Tek Marseille
Port de la Pointe Rouge, 13008 Marseille
Fills diluent (air, trimix) and O₂ for its own CCR and trimix students; fills for visitors: ask
Ask
Tech centre in Pointe Rouge harbour, the departure point for the Calanques and the Riou archipelago. CCR courses on rEvo, JJ-CCR, Shark, Triton and AP Inspiration; CCR trimix to -70 m. CCR and scooter rental: ask. Also +33 6 72 05 50 16.
Kraken Plongée (La Ciotat)
Base nautique, Nouveau Port de Plaisance, Av. du Président Wilson, 13600 La Ciotat
Air, nitrox, oxygen and helium; fills at 230 and 300 bar
Ask
CCR support: oxygen, booster and sorb
The premises on rue Piroddi are temporarily closed; come to the base nautique in the Nouveau Port.
Dive centre with a rEvo rebreather workshop and tech courses; two RIBs (7.5 and 6 m, 24 divers in total). CCR support: sorb (Sofnolime 797) in 20 kg drums or loose. Details confirmed by Kraken Plongée, Oct 2026.
News
- The youth municipal council of Le Thor immersed in the Cosquer Cave in Marseille ↗
- Cosquer Cave: Fireworks cause fire to start on roof of museum ↗
All (3)
- Cyril Montoya: "The archaeological potential of the Cosquer cave in Marseille seems quite enormous!" ↗
- The truth about the Cosquer cave ↗
Accidents and incidents
What happened at this cave before, with the sources. No names are given; read it as a lesson for your own planning.
- In September 1991 three divers died: they could not find the way out of the 175 m access passage.
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 13 Nov 2026.
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