28m
    Intermediate
    Similan Islands, Thailand
    Khao Lak - Lam Ru

    Sea Chart Wreck

    Best months: Jan–May

    Protected Area

    Khao Lak - Lam Ru

    Why dive here

    With 173+ marine species recorded in the area - including blacktip reef sharks, eagle rays, giant moray eels, whale sharks and clownfish - Sea Chart Wreck offers some of Similan Islands's richest wreck diving. Water ranges 29-31°C, warmest April, May, June.

    Best timeJan–May
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBlacktip Reef Sharks, Eagle Rays, Giant Moray Eels, Whale Sharks and Clownfish · 173+ species recorded
    Water29-31°C · warmest April, May, June
    CharacterWreck dive · max 28m
    StandoutExceptional marine biodiversity

    The Sea Chart Wreck sits upright on the seabed at 28 meters, a supply ship that went down in 2009. We like a wreck with a bit of history, and this one’s still relatively intact, offering some decent swim-throughs into the cargo holds and bridge if you’re comfortable with overhead environments. Keep an eye out for batfish hanging around the mast and lionfish tucked into shadowy corners. It’s a good intermediate dive, mostly for the depth, and a nice change of pace from the Similans' usual reef dives.

    Typical Sea Chart Wreck Dive Profile

    10m20m30mSafety Stop0m28m 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 28m - 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.

    Today06:1618:1411h 58m daylightGolden hour 17:47

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    Conditions

    Ocean conditions, forecast and tides for Sea Chart Wreck

    Sea Chart Wreck Ocean Conditions

    Monthly averages for Sea Chart Wreck, sourced from Open-Meteo marine data + Copernicus Marine (EU) - nearest station: Open-Meteo marine grid (8.1, 98.3) (6km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    85°F · Range: 28.7–30.4°C

    Current Speed

    5.1 cm/s

    Direction: S (191.3°)

    Salinity

    29.75 PSU

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

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