Cathédrale
Why dive here
With 77+ marine species recorded in the area - including blue sharks, dolphins, ocean sunfish (mola mola), octopuses and sea turtles - Cathédrale offers some of Medes Islands's richest cave diving. Water ranges 14-24°C, warmest July, August, September.
Cathédrale. The name alone hints at something special, and this site in the Medes Islands absolutely delivers. We love the swim-through that starts around 20 metres. You enter through a narrow crack, and as your eyes adjust to the dim light, the space opens up dramatically. It’s not just a hole in the rock, it’s a genuine cavern, tall and wide, with light filtering down from cracks above, creating those namesake cathedral-like shafts. Look for the red snapping shrimp clicking away in the crevices – you’ll hear them before you see them. We’ve spotted broadnosed pipefish hugging the walls here too, blending in perfectly. The sponges, particularly the black leather sponges, are vibrant and plentiful inside, and outside, the walls are covered in colourful encrusting life. It’s a site that rewards a slow pace, letting your eyes adjust and really taking in the architecture of the place. Best dived on a calm day; strong surge can make the entry a bit challenging. This site is definitely for divers who appreciate dramatic underwater topography and don’t mind a bit of low light.
Typical Cathédrale Dive Profile
Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.
Safety Notes
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 Cathédrale
Dive shops near Cathédrale
UCPA
L'atelier de la mer
CIP Marseille
Dune
Atoll Plongée
Balanea
Reviews for Cathédrale
Conditions
Ocean conditions, forecast and tides for Cathédrale
Cathédrale Ocean Conditions
Monthly averages for Cathédrale, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (43.2, 5.22) (37km away)
October Averages
Sea Temperature
20°C
69°F · Range: 17.4–22.8°C
Current Speed
9.85 cm/s
Direction: SW (246°)
Chlorophyll-a
0.182 mg/m³
Clear water
Salinity
38.21 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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