25m
    Intermediate
    Apo Reef, Philippines

    Nanshin Maru

    Best months: Oct–Feb

    Why dive here

    With 176+ marine species recorded in the area - including giant moray eels, sea turtles, sperm whales, lionfish and pufferfish - Nanshin Maru offers some of Apo Reef's richest wreck diving. Water ranges 28-30°C, warmest May, June, July.

    Best timeOct–Feb
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeGiant Moray Eels, Sea Turtles, Sperm Whales, Lionfish and Pufferfish · 176+ species recorded
    Water28-30°C · warmest May, June, July
    CharacterWreck dive · max 25m
    StandoutExceptional marine biodiversity

    The Nanshin Maru is a real character of a wreck, and for us, it's one of the best reasons to visit Apo Reef. Sitting upright at 25 metres, it’s a beautifully preserved piece of history you can truly interact with, a Japanese freighter sunk during World War II. We love dropping down onto the deck, usually seeing giant trevally circling above, and then taking our time to explore the cargo holds. Inside, you’ll find old sake bottles, dishes, and even parts of what looks like a motorbike, all encrusted with colourful sponges and soft corals. Light shafts penetrate the deeper holds, illuminating schools of glassfish that shimmer as you pass through. Outside, the Nanshin Maru is a magnet for marine life: we’ve often seen barracuda schooling off the bow and reef sharks cruising the perimeter. It’s an intermediate dive, currents can pick up, so pick your slack tide and enjoy a proper wander around this underwater museum.

    Typical Nanshin Maru Dive Profile

    10m20mSafety Stop0m25m 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 25m - Advanced Open Water certification recommended.

    Wreck site - avoid penetration without wreck diving certification. Watch for sharp metal and entanglement hazards.

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

    Today05:5117:4611h 55m daylightGolden hour 17:18

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    Conditions

    Ocean conditions, forecast and tides for Nanshin Maru

    Nanshin Maru Ocean Conditions

    Monthly averages for Nanshin Maru, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (12.33, 121.06) (26km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 28.1–31.3°C

    Current Speed

    3.16 cm/s

    Direction: E (108.4°)

    Chlorophyll-a

    0.049 mg/m³

    Very clear (oligotrophic)

    Salinity

    32.63 PSU

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

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