20m
    Southern Islands, Singapore
    Labrador Nature Reserve

    UNION STAR 46

    Best months: Jan–Mar

    Protected Area

    Labrador Nature Reserve

    Why dive here

    With 263+ marine species recorded in the area - including blue-spotted stingrays, dugongs, giant moray eels, seahorses and sea turtles - UNION STAR 46 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

    The *Union Star 46* is our pick for Singapore wreck diving, and we love it precisely because it’s not some perfectly preserved museum piece. It’s a proper, collapsed wreck, a motor vessel that went down in the Southern Islands and now rests at a comfortable 20 metres. Dropping down, the first thing you notice is the way light dapples through the broken superstructure. It feels like swimming through a submerged skeleton, with twisted metal beams forming arches and doorways. You’ll find impressive schools of fusiliers here, sometimes so thick they obscure parts of the wreck, and a healthy population of batfish that seem to follow you around. We always spend a good chunk of time exploring the engine room area; it’s largely open and makes for some interesting swim-throughs, just watch your buoyancy. Look closely at the hull plates and you’ll spot nudibranchs, often some colourful flatworms, and we’ve even seen small bamboo sharks tucked away in crevices on occasion. It’s a site that rewards slow exploration and careful observation. Best dived on a slack tide for minimal current, as visibility can be variable in Singapore, but on a good day, it's easily 8-10 metres.

    Typical UNION STAR 46 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.

    Today05:5017:5512h 6m daylightGolden hour 17:28

    Nearest Dive Centres to UNION STAR 46

    Dive shops near UNION STAR 46

    View all dive centres in Southern Islands

    Reviews for UNION STAR 46

    Sign in to write a review

    Conditions

    Ocean conditions, forecast and tides for UNION STAR 46

    UNION STAR 46 Ocean Conditions

    Monthly averages for UNION STAR 46, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (1.18, 103.96) (8km away)

    ExcellentGreatGoodFairPoor★Best monthsThis month

    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

    Plan & book

    Ways to dive Southern Islands, from day trips to liveaboards.

    Day trips & courses

    via GetYourGuide

    Guided dives, courses and snorkel trips with instant booking.

    Find dive trips in Southern Islands

    Places to stay

    via Booking.com

    Hotels and dive resorts near Southern Islands.

    Search stays in Southern Islands

    Dive insurance

    Most travel insurance excludes or limits scuba. Check what you need before you go.

    Dive insurance explained

    Partner links: we may earn a commission if you book, at no extra cost to you. How we make money

    Where to Stay near UNION STAR 46

    Prices from Booking.com. We may earn a commission at no extra cost to you.

    Back to Southern Islands