- Depth range
- 15–29 m49–95 ft
- Difficulty
- Intermediate
- Entry
- Boat entry
- Visibility
- 15–30 m49–98 ft
- Water temperature
- 22–29°C72–84°F
Dive-site story
What makes this site worth diving
The British steam-sail vessel SS Dunraven struck Beacon Rock in 1876 while en route from Mumbai to Newcastle, coming to rest upside down along the Sha'ab Mahmud reef slope. The hull has split over time, allowing divers to navigate the interior past inverted boilers, drive shafts, and soft-coral-covered engine parts. Outer reef currents draw glassfish inside the hold while groupers and lionfish patrol shadowed openings. Above, hard coral gardens climb the reef wall toward the surface.
Inverted hull with engine machinery and boilers
Glassfish clouds sheltering inside the dark interior
Giant morays and crocodilefish among seabed wreckage
Location
Find the site
Use the map to plan with your operator and confirm the exact entry point on the day.
Plan this dive with care
- Sha'ab Mahmud currents can pull divers off the reef into open ocean.
- Sharp metal inside the hull presents overhead hazards requiring precise buoyancy control.
Seasonality
Best time to dive
- J—
- F—
- MBest
- ABest
- MBest
- JBest
- JBest
- ABest
- SBest
- OBest
- NBest
- D—
Diving runs year-round, with calmer seas between March and November.
Marine life
What you may encounter
| Species | Likelihood | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GlassfishParapriacanthus ransonneti | Common | ||||||||||||
| Devil firefishPterois miles | Common | ||||||||||||
| Giant morayGymnothorax javanicus | Common | ||||||||||||
| CrocodilefishCymbacephalus beauforti | Common | ||||||||||||
| Napoleon wrasseCheilinus undulatus | Common |
Marine forecast
Current and next 48 hours
DIVEROUT Booking