46m
    Expert
    Saint-Gilles & West Coast, Réunion
    Grande Ravine

    Roches Merveilleuses

    Best months: Nov–Jan

    Protected Area

    Grande Ravine

    Why dive here

    With 511+ marine species recorded in the area - including barracuda, blacktip reef sharks, blue sharks, dolphins and eagle rays - Roches Merveilleuses offers some of Saint-Gilles & West Coast's richest diving. Water ranges 25-29°C, warmest January, February, March.

    Best timeNov–Jan
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Blacktip Reef Sharks, Blue Sharks, Dolphins and Eagle Rays · 511+ species recorded
    Water25-29°C · warmest January, February, March
    Charactermax 46m
    StandoutExceptional marine biodiversity

    Roches Merveilleuses is a site for those comfortable with depth, pushing down to 46 metres. It’s certainly an expert-level dive, and not one for the inexperienced. What you'll find here is a dramatic deep reef structure, the kind that feels like you're exploring the edge of the world. We've seen some impressive pelagics cruise past, barracuda often hang around in the blue, and the deeper corals have a different, more subdued beauty than the shallows. Definitely bring your advanced cert and good air consumption for this one.

    Typical Roches Merveilleuses Dive Profile

    15m30m45mSafety Stop0m46m max~15 min estimated bottom time

    Illustrative profile based on site depth and type. Actual dive profiles vary - always follow your dive computer and training.

    Safety Notes

    Maximum depth 46m exceeds recreational limits (40m). Technical diving certification and equipment required.

    Always perform a 3-minute safety stop at 5m before surfacing.

    Today05:5218:2112h 29m daylightGolden hour 17:51

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    Conditions

    Ocean conditions, forecast and tides for Roches Merveilleuses

    Roches Merveilleuses Ocean Conditions

    Monthly averages for Roches Merveilleuses, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-21.11, 55.25) (2km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    25°C

    77°F · Range: 23.8–27.1°C

    Air Temperature

    23°C

    73°F

    Wind Speed

    4.46 m/s

    8.7 knots

    Atmospheric Pressure

    1018.9 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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