l’arche
Protected Area
Povilla Forest Reserve
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) - l’arche offers some of Loyalty Islands's richest reef diving. Water ranges 24-29°C, warmest January, February, March.
L'arche is one of those spots that just sticks with you. We’ve always found it an electrifying dive, particularly when the current is pushing through the Grand Passage, bringing in the bigger pelagics. Dropping down, you’re looking for that huge arch, easily twenty metres high. It’s absolutely smothered in gigantic gorgonian fans, purples and oranges, swaying with the water movement. We’ve seen schools of dorado flash past, hunting, and often you’ll get a few grey reef sharks patrolling the deeper water just off the pinnacle. Look closely in the crevices and under ledges, that's where we’ve spotted electric flame scallops, their red mantle pulsing with light. The brain corals here are huge, ancient-looking things. It’s a dive for those who appreciate dramatic topography and the thrill of encountering larger fish, but with plenty of macro life if you take the time to hunt for it.
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Conditions
Ocean conditions, forecast and tides for l’arche
l’arche Ocean Conditions
Monthly averages for l’arche, 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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