Loyalty Islands, New Caledonia
    Povilla Forest Reserve

    Les tunnels d’Actinéria

    Best months: May

    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) - Les tunnels d’Actinéria offers some of Loyalty Islands's richest reef diving. Water ranges 24-29°C, warmest January, February, March.

    Best timeMay
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeDugongs, Eagle Rays, Great White Sharks, Manta Rays and Mobula Rays (Devil Rays) · 116+ species recorded
    Water24-29°C · warmest January, February, March
    CharacterReef dive
    StandoutRich in charismatic marine life

    Les tunnels d’Actinéria sits tucked away on the outer reef, a nice escape from any choppy surface conditions. It’s a site that really comes alive if you slow down and actually look; those small faults and tunnels are absolutely packed with tiny details. We’ve spent whole dives just poking around, spotting electric flame scallops tucked into crevices, and more cowries than we knew what to do with – the lined-lip and carnelian are our favourites here. Sunlight filters in through the openings, highlighting the bright discus anemones and the orangutan crabs clinging to them. Deeper, around 17 metres, the brain and honeycomb corals form some impressive structures. While it’s certainly a spot for macro fans, we’ve also had surprising pelagic encounters. Once, we had a proper tiger shark cruise by, completely unexpected in such a sheltered spot. It just goes to show, you never quite know what will drift past. This spot is brilliant for photographers, especially those who love exploring small spaces and finding the hidden gems within a busy reef. You'll want good buoyancy for navigating the tighter sections.

    Today05:3218:0012h 28m daylightGolden hour 17:31

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    Conditions

    Ocean conditions, forecast and tides for Les tunnels d’Actinéria

    Les tunnels d’Actinéria Ocean Conditions

    Monthly averages for Les tunnels d’Actinéria, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-20.94, 165.47) (8km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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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