Reef Explorers
Experienced≤40 m

Grand Congloué – La Pierre de Cassis

Dive site in Marseille & the Calanques, France

Deep Riou spur where Cousteau dug in 1952: vertical walls covered in purple gorgonians from 30 m, with barracudas and dentex passing.

Max depth
65 m
Level
Experienced
Best months
Mar–Dec

The story

The Grand Congloué islet off Riou is where Captain Jacques-Yves Cousteau led archaeological excavations in 1952.

Source: atollplongee.com

The dive

A wall dive. Known for barracuda.

Who it's for

Experienced≤40 mSource: atollplongee.com

Recommended minimum: Experienced (Deep Specialty, N3).

  • DepthThe usual dive goes deeper than lower certifications allow.
  • CurrentCurrent can be strong; you need good air management and buoyancy.
  • The site goes deeper than 40 m: Experienced divers stay above 40 m.

Conditions

Dive type
Wall
Environment
Open water
Water
Sea water

What you might see

  • Barracuda

Season in Marseille & the Calanques

  • Best
  • Good
  • Possible
  • Closed
  • Not documented yet

Good months: Mar–Dec.

Source: myprovence.fr

Where is Marseille & the Calanques?

View on OpenStreetMapLocation: Calanques National Park (Wikipedia)Map: Natural Earth

The point shows the Marseille & the Calanques area, not the exact dive site.

About this page

Values marked “Estimated” come from our original catalogue and are being checked against published sources one by one. Sourced values link to where they come from. Conditions change with the season, the weather and the tide: confirm with a local dive centre before you dive.

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