Provence · about 10 km from Marseille
Grotte à Corail (Île Maïre)
- Max depth25 m
- CertificationOpen water / no overhead
- Water temperature≈ 14–24 °C, varies with the seasonestimated, no reports yet
Diving and fills
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Fills nearby
- Fill stationPlongée Tek MarseilleFills diluent (air, trimix) and O₂ for its own CCR and trimix students; fills for visitors: askRoute ↗
- Fill stationCassis Calanques PlongéeNitrox and trimix (tech and CCR courses); which gases visitors can have filled, and to what pressure: askRoute ↗
- Fill stationKraken Plongée (La Ciotat)Air, nitrox, oxygen and helium; fills at 230 and 300 barRoute ↗
What it looks like
All 1 videos and posts
Videos and posts
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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 well-lit cave: two (one source says three) wide entrances open into one large chamber, and because part of the ceiling has collapsed there is plenty of daylight.
Profile and sections
A well-lit cave: two (one source says three) wide entrances open into one large chamber, and because part of the ceiling has collapsed there is plenty of daylight. Red coral with white polyps grows on the ceiling and in cracks; you also see yellow gorgonians, shrimps, squat lobsters, conger eels and groupers. A narrow passage ends in an air pocket. A reverse profile is possible: it is shallower inside than at the entrance.
Practical: the site is sheltered from light mistral and light easterlies.
- Depth and profile
- Two entrances at -9/-12 and ~-16 m · large chamber, exit towards ~-8 m · fissure to ~-25 m · around the site to -35 m (one source)
- Configuration
- All configurations; roomy, well-lit chamber.
- DPV: Not DPV-suitable (estimate)
- One large chamber near the entrance; a scooter adds nothing.
Who can dive where
- At least Open water / no overhead
- Configurations: Backmount / twinset / Sidemount / CCR / Small cylinders / no-mount (speleo sumps)
- 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
By boat only, with a Marseille dive centre. Moor right by the site, in a small sheltered cove on the south side of Île Maïre.
Around Grotte à Corail (Île Maïre)
Fills3 fill stations · nearest 10 km
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.
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.
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.
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