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Scuba diving at Tombant de Castel Vieil in Cassis
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Tombant de Castel Vieil

GREAT
CassisBoat
About This Site
One of the most-dived and most accessible Calanques walls out of Cassis. The limestone cliff rounds off and slides underwater to a plateau around 15-20 m, then steps down in successive drop-offs to 40 m and beyond, reaching 45-50 m at the base. The shallow plateau is friendly to Level-1 divers while the deeper steps suit more experienced divers, and the high cliffs shelter it from the Mistral so it remains divable when much of the coast is blown out.

Difficulty

Intermediate

Max Depth

46m

Type

Boat

Typical Visibility

20m

Conditions Summary

Best time today

6AM - 12PM

GREAT

Best day in forecast

Today

GREAT

2026-07-11

Community-reported visibility

n/a

Warnings for today

None

The wall faces south toward the open Mediterranean from the seaward tip of the headland that separates the Calanque d'En-Vau from the Calanque de l'Oule. The towering Calanques cliffs to the north fully block the Mistral (NW) and the entire landward sector, which is exactly why the site stays divable when that wind blows. The exposed face is open to southerly wind-waves and the long-fetch Scirocco (S-SE), so the SE-S-SW arc is where surface chop and surge build.

NNEESESSWWNW
Protected
Partially Exposed
Exposed
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Nearby Dive Sites
Cap Morgiou (Tombant du Cap Morgiou)La Grotte à CorailPointe CacauTombant de la Cassidaigne