Diamond Rock, Martinique
    Cap Salomon

    Alpha Plongée

    Best months: Jan–Apr

    Protected Area

    Cap Salomon

    Why dive here

    With 362+ marine species recorded in the area - including barracuda, dolphins, eagle rays, humpback whales and nurse sharks - Alpha Plongée offers some of Diamond Rock's richest diving. Water ranges 27-30°C, warmest August, September, October.

    Best timeJan–Apr
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Dolphins, Eagle Rays, Humpback Whales and Nurse Sharks · 362+ species recorded
    Water27-30°C · warmest August, September, October
    StandoutExceptional marine biodiversity

    Diamond Rock, or Rocher du Diamant as the locals call it, is an iconic landmark in Martinique, and Alpha Plongée gives you a cracking perspective of its underwater foundations. We’ve always found this site to be a proper kaleidoscope of blues, from the deep indigo of the drop-off to the lighter azure shallower parts. What we really love about Alpha Plongée is the way the light plays through the cracks and crevices of the rock itself, illuminating schools of blue-striped grunts and the occasional shy hogfish. Keep an eye out for seahorses here; we’ve had some cracking encounters tucked away amongst the gorgonians. The resident mutton snapper are pretty bold, often checking you out with an inquisitive eye. It’s a site that feels a bit wild, a true Caribbean classic, with that surge reminding you you’re diving an exposed rock face. We’d suggest hitting it on a calmer day to really appreciate the details, especially if you want to spend time hunting for those seahorses. The deeper sections often give you glimpses of larger pelagics moving past. It’s a dive that rewards slow exploration, perfect for photographers or anyone who appreciates the subtle beauty of a robust reef ecosystem.

    Today05:5517:4911h 53m daylightGolden hour 17:20

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    Conditions

    Ocean conditions, forecast and tides for Alpha Plongée

    Alpha Plongée Ocean Conditions

    Monthly averages for Alpha Plongée, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (14.54, -61.06) (5km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29.1–30.9°C

    Air Temperature

    28°C

    82°F

    Wind Speed

    5.21 m/s

    10.1 knots

    Atmospheric Pressure

    1012.3 hPa

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

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