DiveLine LogoDiveLine LogoDiveLine
Blog
⌘K
Sign UpLogin

DiveLine

Your ultimate dive buddy for the perfect underwater experience.

Features

  • Dive Map
  • Dive Areas
  • Dive Planner
  • Blog

Resources

  • Patron
  • Buy Us a Coffee
  • Contact Us

Contact

  • [email protected]
  • +1 (831) 566-8793
  • Laguna Beach, CA, USA

© 2026 DiveLine. All rights reserved.

Privacy PolicyTerms of Service
Scuba diving at La Vallée des Mérous (Grouper Valley) in Ajaccio
Back

La Vallée des Mérous (Grouper Valley)

GREAT
AjaccioBoat
About This Site
La Vallée des Mérous is the classic deep exploration dive of the Ajaccio area, lying about 400 metres north of Pointe de l'Isolella, the rocky promontory that marks the southern entrance of the Gulf of Ajaccio. The site is a labyrinthine underwater valley of granite galleries and cavities running along a current-swept drop-off: the reef descends through the 25-45 m band and the tombant continues to roughly 55 m. It is famous as a grouper habitat, where large dusky groupers patrol the ledges, and for a natural air pocket that experienced divers can reach by threading through one of the galleries. Reserved for confident, deep-qualified divers (French Level-2 and up), it rewards them with big groupers, red gorgonians and a branch of black coral around 40 m.

Difficulty

Advanced

Max Depth

55m

Type

Boat

Typical Visibility

20m

Conditions Summary

Best time today

6AM - 12PM

GREAT

Best day in forecast

Tuesday

GREAT

2026-07-14

Community-reported visibility

n/a

Warnings for today

None

The site lies at the southern mouth of the Gulf of Ajaccio, just north of Pointe de l'Isolella, with the Isolella peninsula and the south coast shielding it from the SE-S-E sectors and the inner gulf enclosing it to the east. The exposed window is the open sea to the west and southwest: WSW-W is fully open and the SW carries the region's dominant Libeccio wind-sea, the main wave-maker here. The NW-N sector is moderately open toward the gulf mouth and can build under Mistral/Tramontana. This is a wind-fetch Mediterranean regime with no true ocean swell, so the site works in calm and gentle conditions but is quickly stirred by a sustained SW Libeccio or a NW blow, which also reinforces the drop-off's current and forces dives to be cancelled.

NNEESESSWWNW
Protected
Partially Exposed
Exposed
Loading...
Nearby Dive Sites
Le Pic du Scudo (Scudo)Les Îles Sanguinaires (Grande Sanguinaire)La Tête de Mort (Ajaccio)La CampaninaÉpave de la Meulière (Punta Castagna)