20m
    Southern Islands, Singapore

    MANDIRI I

    Best months: Jan–Mar

    Why dive here

    With 263+ marine species recorded in the area - including blue-spotted stingrays, dugongs, giant moray eels, seahorses and sea turtles - MANDIRI I offers some of Southern Islands's richest wreck diving. Water ranges 28-31°C, warmest May, June, November.

    Best timeJan–Mar
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlue-Spotted Stingrays, Dugongs, Giant Moray Eels, Seahorses and Sea Turtles · 263+ species recorded
    Water28-31°C · warmest May, June, November
    CharacterWreck dive · max 20m
    StandoutExceptional marine biodiversity

    Mandiri I is our pick for a decent wreck dive when you’re in Singapore. This tug sank in a storm back in ‘91, heading from Palembang to Batam. Now she sits upright on the seabed at 20 metres. We love dropping down and seeing her emerge from the green haze, usually with a decent current pushing you along her hull. There’s a real sense of history here, a proper wreck with a story. You can usually make out the wheelhouse, the superstructure, and the main deck area, all encrusted now with sponges and hydroids. The wreck itself isn't massive, but it’s large enough to offer plenty of nooks and crannies for exploration. Look for schools of yellowtail scad flitting around the mast, and we’ve often spotted barracuda patrolling the deck. Keep an eye out for resident groupers peering from shadowy openings. Visibility can be hit or miss, typical for Singapore, so choose your day. Go on a slack tide for the best chance to really take your time and appreciate the Mandiri I’s character.

    Typical MANDIRI I Dive Profile

    10m20mSafety Stop0m20m 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 20m - 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.

    Today05:4817:5512h 7m daylightGolden hour 17:28

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    Conditions

    Ocean conditions, forecast and tides for MANDIRI I

    MANDIRI I Ocean Conditions

    Monthly averages for MANDIRI I, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (1.18, 103.96) (8km away)

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    October Averages

    Sea Temperature

    30°C

    86°F · Range: 29.5–31.1°C

    Air Temperature

    27°C

    81°F

    Wind Speed

    4.07 m/s

    7.9 knots

    Atmospheric Pressure

    1009.8 hPa

    Based on 4 years of monitoring data · Data sources: Open-Meteo marine data

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