Big Seamount - Perhentian Islands
Big Seamount is one of Perhentian's deeper sites, often attracting pelagic action away from the main islands. We've seen reef sharks patrolling the edges here, along with schools of barracuda and fusiliers. It's a spot best suited for divers comfortable with open water and a bit of current, looking for larger marine encounters rather than intricate coral formations. Visibility can be hit or miss, but on a good day, it offers a distinct contrast to the shallower reefs.
- Location
- Perhentian Islands, Malaysia, Southeast Asia
- Coordinates
- 5.784033, 103.060150
- Type
- pinnacle
Marine Protected Area: Pulau Lima Marine Park
Best Time to Dive in Perhentian Islands
The warmest water temperatures in Perhentian Islands occur in June, averaging 31.2°C. The coolest conditions are in January at 28.3°C.
Monthly Water Temperatures
- January: 28.3°C
- February: 28.4°C
- March: 29.1°C
- April: 30.6°C
- May: 31.1°C
- June: 31.2°C
- July: 31.1°C
- August: 30.9°C
- September: 30.8°C
- October: 30.4°C
- November: 29.8°C
- December: 28.7°C
Nearby Dive Sites in Perhentian Islands
- Angel Diver - 10-25m (reef)
- Anti Gravity Divers
- BATTY 3 - 52m (wreck)
- Batu Berendam - 22m
- Batu Bulan - 14m
- Batu Chaping - 18m
- Batu Chipor
- Batu Kapal - 18m
- Batu Kuching - 19m
- Batu Layar - 10-25m (pinnacle)
- Batu Layar
- Batu Nisan
- Batu Nisan Laut - 14m
- Bidong Jetty - 15m (reef)
- Black Coral Garden (reef)
Nearest Dive Centres to Big Seamount
Marine Life in Perhentian Islands
Home to 169 recorded species including 105 reef fish, 39 hard corals, 11 sea cucumbers, 5 seagrass & algae, 3 sharks & rays, 2 other.
Notable Species
- Green Turtle (Chelonia mydas)
- Silver-cheeked Toadfish (Lagocephalus sceleratus) - Reef Fish
- Common Ponyfish (Leiognathus equula) - Reef Fish
- Yellowstripe scad (Selaroides leptolepis) - Reef Fish
- Yellow Citharid (Brachypleura novaezeelandiae) - Reef Fish
- Blacktip Ponyfish (Eubleekeria splendens) - Reef Fish
- Lattice monocle bream (Scolopsis taenioptera) - Reef Fish
- Jack (Selar crumenophthalmus) - Reef Fish
- Silver Sillago (Sillago sihama) - Reef Fish
- Flathead Sleeper (Ophiocara porocephala) - Reef Fish
- Silver moony (Monodactylus argenteus) - Reef Fish
- Three Banded Razorfish (Iniistius trivittatus) - Reef Fish
- Golden rabbitfish (Siganus guttatus) - Reef Fish
- Deep Body Silver Biddy (Gerres erythrourus) - Reef Fish
- Triggerfish (Aluterus monoceros) - Reef Fish
- Blue-banded wrasse (Xiphocheilus typus) - Reef Fish
- Grouper (Epinephelus areolatus) - Reef Fish
- Indian mackerel (Rastrelliger kanagurta) - Reef Fish
- Banded-Tail Glassy Perchlet (Ambassis urotaenia) - Reef Fish
- Estuary Cod (Epinephelus coioides) - Reef Fish
Recommended Packing List for Big Seamount
Based on average water temperature of 30.0°C, currents 5 cm/s.
- Shorty or Rashguard - warm 30°C water needs minimal exposure protection
- Mask - essential for every dive
- Fins
- BCD - buoyancy compensator
- Regulator - your most safety-critical piece of gear
- Dive Computer - tracks depth, time, and NDL
- Surface Marker Buoy (SMB) - essential for boat pickups
- Dive Torch - useful for crevices and colour at depth
- Underwater Camera - capture your diving memories