Sulawesi, Indonesia
    KK Kota Bitung

    Mawali Wreck

    Best months: Jan–May

    Protected Area

    KK Kota Bitung

    Why dive here

    With 238+ marine species recorded in the area - including blacktip reef sharks, giant moray eels, pygmy seahorses, seahorses and sperm whales - Mawali Wreck offers some of Sulawesi's richest wreck diving. Water ranges 29-31°C, warmest June, October, November.

    Best timeJan–May
    WetsuitNo wetsuit needed, or a rash guard
    Marine lifeBlacktip Reef Sharks, Giant Moray Eels, Pygmy Seahorses, Seahorses and Sperm Whales · 238+ species recorded
    Water29-31°C · warmest June, October, November
    CharacterWreck dive
    StandoutExceptional marine biodiversity

    The Mawali Wreck isn't just a sunken ship; it’s a living museum, a time capsule resting on the seabed off Sulawesi. We love a good wreck, and this Japanese patrol boat, scuttled during WWII, has aged gracefully, now completely encrusted. We’re talking serious coral growth here, especially those colossal gorgonian fans that look like purple dinner plates. Dropping down, the bow is a fantastic place to start, often swarming with schools of fusiliers and yellowback snappers that shimmer in the ambient light. Penetration is possible for experienced divers, but it’s tight in places. We’d suggest a good torch even during the day; it really brings out the colours of the sponges and nudibranchs clinging to the bulkheads. Look for frogfish camouflaged on the deck plates – they’re masters of disguise, but their huge mouths give them away. The stern, at around 25 metres, feels particularly moody, often patrolled by reef sharks. It’s a site for divers who appreciate history and don't mind a bit of current to explore a well-preserved piece of the past, now totally reclaimed by the ocean.

    Safety Notes

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

    Today05:2417:2912h 5m daylightGolden hour 17:02

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    Conditions

    Ocean conditions, forecast and tides for Mawali Wreck

    Mawali Wreck Ocean Conditions

    Monthly averages for Mawali Wreck, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (1.5, 124.75) (0km away)

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    October Averages

    Sea Temperature

    30°C

    87°F · Range: 29.6–31.2°C

    Current Speed

    1 cm/s

    Direction: W (270°)

    Chlorophyll-a

    0.099 mg/m³

    Very clear (oligotrophic)

    Salinity

    33.17 PSU

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

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