13-30m
    Prony Bay, New Caledonia
    Réserve de la passe Amédée

    Boulari Plateau Manta

    Best months: Dec–Apr

    Protected Area

    Réserve de la passe Amédée

    Why dive here

    With 73+ marine species recorded in the area - including dugongs, great white sharks, humpback whales and sperm whales - Boulari Plateau Manta offers some of Prony Bay's richest wall diving. Water ranges 22-27°C, warmest January, February, March.

    Best timeDec–Apr
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDugongs, Great White Sharks, Humpback Whales and Sperm Whales · 73+ species recorded
    Water22-27°C · warmest January, February, March
    CharacterWall dive · max 13-30m
    StandoutRich in charismatic marine life

    Boulari Plateau Manta in Prony Bay is exactly what it sounds like, a manta ray magnet. We're talking proper reef mantas, not just a passing glimpse. This plateau, sitting at a comfortable 13 metres, acts as a cleaning station, so you settle in and watch the show. We’ve had dives here where we barely moved, just observing these gentle giants glide in, hover over the coral heads, and get serviced by the smaller fish. The current can be stiff, sometimes really ripping, so it’s a drift dive for sure. You’ll be swept along the edge of the plateau, eyes peeled, then you hit the sweet spot. When the mantas are here, they're the main event. But don’t forget to look around. Schools of blue and gold fusiliers are everywhere, and we’ve seen some hefty grey reef sharks patrolling the deeper edges. Keep an eye out for orbicular batfish too, they often hang around the reef crest. Our pick for timing is definitely early morning, before any boat traffic picks up. The water generally holds 19 metres of visibility, a clear, warm blue that just feels like New Caledonia. This site is for divers who appreciate a reliable big animal encounter and don't mind a bit of a current. It's a drift that delivers.

    Typical Boulari Plateau Manta Dive Profile

    5m10m15mSafety Stop0m13m max~50 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

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

    Today05:2717:5712h 30m daylightGolden hour 17:27

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    Conditions

    Ocean conditions, forecast and tides for Boulari Plateau Manta

    Boulari Plateau Manta Ocean Conditions

    Monthly averages for Boulari Plateau Manta, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-22.43, 166.43) (4km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    23°C

    74°F · Range: 21.8–26.2°C

    Current Speed

    6.71 cm/s

    Direction: SW (206.6°)

    Chlorophyll-a

    0.061 mg/m³

    Very clear (oligotrophic)

    Salinity

    35.39 PSU

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data + Copernicus Marine (EU)

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