Reef Explorers
Experienced≤40 m

Les Bluiniers (Pic Jules Bonnot)

Dive site in Finistère (Brest, Crozon & Glénan), France

A deep plateau west of the Glénan pitted with 'witches' cauldrons', ancient river potholes where crabs get trapped.

Max depth
40 m
Level
Experienced
Best months
Jun–Sep

The story

The plateau is pocked with 'witches' cauldrons', cylindrical holes of 1 to 3 m carved by a rotating stone back when the bed of the Odet river ran here. Spider crabs and edible crabs often end up trapped inside, unable to climb the smooth, curved walls.

Source: enezgreen.com

The dive

A rock formations and reef dive. Known for crustaceans.

Who it's for

Experienced≤40 mSource: enezgreen.com

Recommended minimum: Experienced (Deep Specialty, N3).

  • DepthThe usual dive goes deeper than lower certifications allow.

Conditions

Dive type
Rock formations, Reef
Environment
Open water
Water
Sea water

What you might see

  • Crustaceans

Season in Finistère (Brest, Crozon & Glénan)

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

Best months: Jun–Sep.

Source: tourismebretagne.com

Where is Finistère (Brest, Crozon & Glénan)?

View on OpenStreetMapLocation: Roadstead of Brest (Wikipedia)Map: Natural Earth

The point shows the Finistère (Brest, Crozon & Glénan) 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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