20m
    Trincomalee & East Coast, Sri Lanka

    JUMBO JOIST

    Best months: Dec–Feb

    Why dive here

    With 254+ marine species recorded in the area - including barracuda, dolphins, sea turtles, sperm whales and spinner dolphins - JUMBO JOIST offers some of Trincomalee & East Coast's richest wreck diving. Water ranges 27-30°C, warmest April, May, October.

    Best timeDec–Feb
    WetsuitA 3mm shorty or thin full wetsuit
    Marine lifeBarracuda, Dolphins, Sea Turtles, Sperm Whales and Spinner Dolphins · 254+ species recorded
    Water27-30°C · warmest April, May, October
    CharacterWreck dive · max 20m
    StandoutExceptional marine biodiversity

    Jumbo Joist is a proper wreck dive, our pick for Trincomalee if you're into something a bit more substantial than a reef. This old motor vessel went down in '84, and she's settled upright on a sandy bottom at 20 metres. You can really get a feel for her scale as you descend, the 80-metre length stretching out below you. We love exploring her holds, especially the number one and two where she took on water. There's a tangible sense of history down there, a quiet hum in the water as you glide through the darker sections. On the superstructure, schools of fusiliers are usually so thick they almost block out the light. Look closely and you'll often spot scorpionfish camouflaged on the plating, and groupers have claimed the deeper nooks as their territory. Visibility here can be excellent, making the whole wreck accessible to divers comfortable with penetration and deeper dives. It’s an easy-going wreck, no strong currents to worry about, just a grand old lady waiting to be explored.

    Typical JUMBO JOIST 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.

    Today05:2017:2012h 0m daylightGolden hour 16:52

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    Conditions

    Ocean conditions, forecast and tides for JUMBO JOIST

    JUMBO JOIST Ocean Conditions

    Monthly averages for JUMBO JOIST, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (8.53, 81.23) (31km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    October Averages

    Sea Temperature

    30°C

    85°F · Range: 27.5–30.3°C

    Air Temperature

    27°C

    81°F

    Wind Speed

    4.73 m/s

    9.2 knots

    Atmospheric Pressure

    1009 hPa

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

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