grande passe
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) - grande passe offers some of Loyalty Islands's richest reef diving. Water ranges 24-29°C, warmest January, February, March.
Grande Passe is one of those spots that feels like a proper ocean gate. We often drop onto a plateau, maybe 10 or 12 metres down, before easing into the channel itself. The current here is the main event, and we go with it, not against it, so it's a drift dive. What we love about Grande Passe are the pinnacles, absolutely smothered in gorgonians, like purple and orange trees in an underwater forest. Keep an eye out for the Electric Flame Scallop, they’re truly striking. This is a site where you spend a lot of time looking out into the blue. We've seen blacktip and whitetip sharks cruising past, often grey sharks too. Schools of tuna, jacks, and barracuda frequently whip by. Our favourite time to dive it is on an incoming tide – the water tends to be clearer, and the bigger fish seem more active. The entry and exit can sometimes be a bit sporty, so you need to be comfortable with a bit of chop and current. Grande Passe is for divers who appreciate a good drift and the thrill of pelagic encounters rather than seeking out tiny critters.
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Conditions
Ocean conditions, forecast and tides for grande passe
grande passe Ocean Conditions
Monthly averages for grande passe, 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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