HTMS Prab 741, Wreck
Protected Area
Mu ko Chumphon
Why dive here
With 158+ marine species recorded in the area - including blacktip reef sharks, blue-spotted stingrays, mobula rays (devil rays), whale sharks and pufferfish - HTMS Prab 741, Wreck offers some of Gulf of Thailand's richest wreck diving. Water ranges 28-31°C, warmest April, May, June.
The HTMS Prab, a former patrol boat, sits upright in the Gulf at a very comfortable 20 metres. We love it because it’s surprisingly intact for its age, a proper penetrable wreck without being too demanding. You can fin right through the wheelhouse, seeing the gauges still in place, then drop down into the engine room, which always feels a bit eerie, like the crew just stepped out for a minute. It’s an excellent spot for newer wreck divers looking to get a feel for overhead environments. There's plenty of natural light filtering in, so you never feel truly enclosed. Fusiliers school in thick clouds over the bow, and we often spot substantial groupers tucked under the stern. Keep an eye out for batfish circling the mast, they’re usually quite curious. The Prab doesn't throw any curveballs, making it our pick for a relaxed afternoon dive, especially when the currents are mild, which they usually are here.
Typical HTMS Prab 741, Wreck 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 HTMS Prab 741, Wreck
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Conditions
Ocean conditions, forecast and tides for HTMS Prab 741, Wreck
HTMS Prab 741, Wreck Ocean Conditions
Monthly averages for HTMS Prab 741, Wreck, sourced from Open-Meteo marine data - nearest station: Open-Meteo marine grid (10.15, 99.7) (6km away)
October Averages
Sea Temperature
30°C
86°F · Range: 29.1–31°C
Air Temperature
27°C
81°F
Wind Speed
4.83 m/s
9.4 knots
Atmospheric Pressure
1009.7 hPa
Based on 4 years of monitoring data · Data sources: Open-Meteo marine data
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