La Cathedrale
Protected Area
Calanques
Why dive here
With 157+ marine species recorded in the area - including blue sharks, dolphins, dwarf minke whales, humpback whales and mobula rays (devil rays) - La Cathedrale offers some of Marseille & Calanques's richest cave diving. Water ranges 14-25°C, warmest July, August, September.
La Cathédrale is a dive that truly lives up to its name, an impressive cavern system just outside Marseille. You’ll find large, open chambers with light filtering down from the surface, creating an ethereal glow. It's a great spot for advanced open water divers comfortable with overhead environments, offering a unique architectural dive rather than a coral-focused experience. Bring a torch to explore the darker corners, though much of it is well-lit by the entrance.
Typical La Cathedrale Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
Depth of 20m - Advanced Open Water certification recommended.
Overhead environment - never enter without proper cave/cavern training, redundant equipment, and a guideline.
Always perform a 3-minute safety stop at 5m before surfacing.
Nearest Dive Centres to La Cathedrale
Dive shops near La Cathedrale
UCPA Cap Croisette
ATELIER DE LA MER
Balanea
Paradis Plongée
Cassis Calanques Plongée
PLONGEE PASSION CARRY
Reviews for La Cathedrale
Conditions
Ocean conditions, forecast and tides for La Cathedrale
La Cathedrale Ocean Conditions
Monthly averages for La Cathedrale, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (43.11, 5.89) (32km away)
October Averages
Sea Temperature
21°C
69°F · Range: 15.7–23.1°C
Air Temperature
18°C
64°F
Wind Speed
6.69 m/s
13.0 knots
Atmospheric Pressure
1016.9 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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