Sulawesi, Indonesia

    Ring of fire

    Best months: Jan–May

    Why dive here

    With 238+ marine species recorded in the area - including blacktip reef sharks, giant moray eels, pygmy seahorses, seahorses and sperm whales - Ring of fire offers some of Sulawesi's richest reef 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
    CharacterReef dive
    StandoutExceptional marine biodiversity

    The Ring of Fire site in Sulawesi delivers a solid wall dive, but with a twist. Instead of just a sheer drop, we get a gradual slope towards the end, which really diversifies the scenery. Down to 13 metres, it’s a pretty relaxed depth, making it good for extending bottom time to really scrutinise the wall. We’ve found a nice collection of nudibranchs here, along with various shrimp and crabs tucked into the crevices. Look out for the purple goby, it’s a striking little fish. Visibility averages around 20 metres, so there’s usually a good chance of spotting a blacktip reef shark or an eagle ray passing through the blue. It’s a good choice for divers who enjoy taking their time over macro subjects but still appreciate a chance at something bigger.

    Today05:3717:4512h 7m daylightGolden hour 17:17

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    Conditions

    Ocean conditions, forecast and tides for Ring of fire

    Ring of fire Ocean Conditions

    Monthly averages for Ring of fire, 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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