2-25m
    Raja Ampat, Indonesia
    Teluk Mayalibit (Raja Ampat)

    Biodiversity House Reef

    Best months: Dec–Apr

    Protected Area

    Teluk Mayalibit (Raja Ampat)

    Why dive here

    With 236+ marine species recorded in the area - including blacktip reef sharks, manta rays, mobula rays (devil rays), pygmy seahorses and sea turtles - Biodiversity House Reef offers some of Raja Ampat's richest reef diving. Water ranges 29-30°C, warmest May, November, December.

    Best timeDec–Apr
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeBlacktip Reef Sharks, Manta Rays, Mobula Rays (Devil Rays), Pygmy Seahorses and Sea Turtles · 236+ species recorded
    Water29-30°C · warmest May, November, December
    CharacterReef dive · max 2-25m
    StandoutExceptional marine biodiversity

    Biodiversity House Reef. Sounds a bit plain, doesn't it? Don't let the name fool you. We spend more time here than we probably should, kicking around under the jetty and then letting the current (if there is one) nudge us towards Batu Lima. It's a fantastic, low-effort dive, maxing out at about 18 metres, which means plenty of bottom time. We love that this reef starts right in front of the jetty, shallow at two metres, then gently slopes down. The real magic, though, is tucked away in the shadows of the pilings. This is where we consistently find the Raja Ampat epaulette shark – the walking shark – doing its thing, plodding along the substrate. Keep an eye out too for blacktip reef sharks cruising the shallows, often just after dawn. Visibility averages around 13 metres, which is decent enough for spotting those tiny treasures. Our favourite finds here are the pygmy seahorses, usually clinging to a gorgonian, and the bizarre common dragonets performing their courtship dance. It's a superb site for macro enthusiasts and anyone wanting a relaxed dive with consistent big and small animal sightings.

    Typical Biodiversity House Reef Dive Profile

    Safety Stop0m2m max~60 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

    Strong currents typical this month (avg 35 cm/s). Good buoyancy control essential.

    Today06:0118:0812h 7m daylightGolden hour 17:41

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    Conditions

    Ocean conditions, forecast and tides for Biodiversity House Reef

    Biodiversity House Reef Ocean Conditions

    Monthly averages for Biodiversity House Reef, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (-0.5, 130.6) (0km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29.2–30.9°C

    Current Speed

    34.71 cm/s

    Direction: NW (311.5°)

    Chlorophyll-a

    0.138 mg/m³

    Clear water

    Salinity

    34.33 PSU

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

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