Apo Reef, Philippines

    Okikawa 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 - Okikawa 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
    StandoutExceptional marine biodiversity

    The Okikawa Maru is a beast of a wreck, sitting upright in about 26 to 34 metres, and it’s our pick for anyone who loves a bit of history with their nitrogen. We love how vast it is; you can spend a whole dive just exploring one section. Its sheer size means there are plenty of penetration points, though we’d suggest leaving those for advanced wreck divers who've got proper training and lights. What makes it special is the way the reef has just swallowed it whole. Every surface is carpeted in corals, and you’ll find resident white-tip reef sharks often cruising through the cargo holds. Look closely in the darker corners and you might spot a big marbled stingray. We’ve seen schools of snapper so thick you can barely see the bow from the stern, and the anenomefish here are particularly bold. On the dive back up, keep an eye out for turtles munching on the corals growing from the deck. It’s a dive that rewards slow exploration, especially when the current isn’t ripping through.

    Safety Notes

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

    Today05:5017:4511h 55m daylightGolden hour 17:17

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    Conditions

    Ocean conditions, forecast and tides for Okikawa Maru

    Okikawa Maru Ocean Conditions

    Monthly averages for Okikawa 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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