20-35m
    Nosy Be, Madagascar
    Ranobe Bay

    Le Grand Bleu

    Best months: Jul–Sep

    Protected Area

    Ranobe Bay

    Why dive here

    Le Grand Bleu is a pinnacle dive in Nosy Be, Madagascar. Water ranges 27-31°C, warmest March, April, December.

    Best timeJul–Sep
    WetsuitA 3mm shorty or thin full wetsuit
    Water27-31°C · warmest March, April, December
    CharacterPinnacle dive · max 20-35m
    StandoutDramatic pinnacle topography

    Le Grand Bleu, just off Nosy Be, is a good pick for a relaxed afternoon dive, especially if you're keen on the smaller stuff. We've seen a surprising number of cowries tucked into the crevices here, and it's a reliable spot for Natal Electric Rays resting on the sand. Look closely for Sharptooth Snapper darting among the halodule seagrass. It's not a site that will blow your mind with huge pelagics, but for macro enthusiasts and divers who appreciate a quieter experience, it often delivers.

    Typical Le Grand Bleu Dive Profile

    10m20mSafety Stop0m20m max~30 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

    Depth of 20m - Advanced Open Water certification recommended.

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

    Today05:3818:0912h 31m daylightGolden hour 17:39

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    Conditions

    Ocean conditions, forecast and tides for Le Grand Bleu

    Le Grand Bleu Ocean Conditions

    Monthly averages for Le Grand Bleu, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (-13.6, 47.82) (223km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    28°C

    83°F · Range: 26.8–29.7°C

    Air Temperature

    28°C

    83°F

    Wind Speed

    4.94 m/s

    9.6 knots

    Atmospheric Pressure

    1014.2 hPa

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

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