UNION STAR 46
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.
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
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.
Nearest Dive Centres to UNION STAR 46
Dive shops near UNION STAR 46
Resorts World at Sentosa Pte Ltd
OrcaNation Singapore
Scuba Quest Pte Ltd
DiveLab
REN Scubaworx
Diveonesg Pte Ltd
Reviews for UNION STAR 46
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)
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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