Grottes aux Chats
Protected Area
Île Verte
Why dive here
With 116+ marine species recorded in the area - including dugongs, eagle rays, great white sharks, manta rays and mobula rays (devil rays) - Grottes aux Chats offers some of Loyalty Islands's richest diving. Water ranges 24-29°C, warmest January, February, March.
Grottes aux Chats is one of those places that sticks with you, even if the name always makes us picture a dive full of feline fish. It’s actually a cavern system, a proper cathedral of rock, dropping to about 33 metres for recreational divers, though techies can push it deeper. We love the dramatic entrance, a wide mouth that opens into a dark chamber. The ambient light fades quickly, and your torch beam really comes alive, picking out the rough texture of the walls. Inside, the topography is the real draw. We’ve drifted past schools of tiny glassfish shimmering in the darker recesses, and found lobsters tucked into every crevice. Keep an eye out for the big pelagics cruising just outside the main opening, often we’ve seen eagle rays glide by, their shadows moving over the coral bommies. It's a fantastic site for anyone who enjoys a bit of overhead environment, comfortable in the dark, and not reliant on colourful corals for their fix. Visibility here averages around 15 metres, which feels just right for the scale of the place, giving it a slightly mysterious atmosphere without being too challenging. Our tip? Try to time your dive for midday, when the sun can pierce the water just enough to create some incredible light shafts near the entrance.
Reviews for Grottes aux Chats
Conditions
Ocean conditions, forecast and tides for Grottes aux Chats
Grottes aux Chats Ocean Conditions
Monthly averages for Grottes aux Chats, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-20.94, 165.47) (8km away)
October Averages
Sea Temperature
25°C
77°F · Range: 23.4–27.1°C
Current Speed
8.06 cm/s
Direction: S (187.1°)
Chlorophyll-a
0.052 mg/m³
Very clear (oligotrophic)
Salinity
35.08 PSU
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)
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