One Tree Bay - Tioman Island
One Tree Bay sits off the west coast of Tioman, a reliable, easy dive for shaking off the travel dust or getting comfortable again in the water. The reef is mostly hard coral, quite healthy, with plenty of small reef fish flitting about. You’ll spot the usual suspects: parrotfish munching away, clownfish tending their anemones, and often a few curious cuttlefish gliding through. It’s a good spot for beginners, topping out at 18 metres, with generally mild currents, making it ideal for longer bottom times and practicing buoyancy.
- Location
- Tioman Island, Malaysia, Southeast Asia
- Coordinates
- 2.914400, 104.114700
- Type
- reef
- Maximum Depth
- 18m
- Difficulty
- Beginner
Marine Protected Area: Pulau Tulai Marine Park
Best Time to Dive in Tioman Island
The warmest water temperatures in Tioman Island occur in May, averaging 30.7°C. The coolest conditions are in January at 28.2°C.
Monthly Water Temperatures
- January: 28.2°C
- February: 28.3°C
- March: 29.1°C
- April: 30.6°C
- May: 30.7°C
- June: 29.9°C
- July: 29.7°C
- August: 29.5°C
- September: 29.6°C
- October: 30.3°C
- November: 30.0°C
- December: 28.7°C
Nearby Dive Sites in Tioman Island
- ANN TONG - 4m (wreck)
- Bahai - 15m
- Bahara Rocks
- Bali Hai Divers House Reef (reef)
- Bamboo SeaSport - 5-18m (reef)
- Batu Katoaka (reef)
- Batu Mumbang - 16m
- Berlabuh - 20m
- B&J
- Blue Heaven Divers
- Bugis - 19m
- Bunker (reef)
- Captain point
- Coral Garden (reef)
- Courier (reef)
Nearest Dive Centres to One Tree Bay
Marine Life in Tioman Island
Home to 118 recorded species including 75 reef fish, 15 hard corals, 8 sharks & rays, 7 seagrass & algae, 5 sea cucumbers, 3 other.
Notable Species
- cymodocea (Cymodocea rotundata) - Seagrass & Algae
- seagrass (Halophila ovalis) - Seagrass & Algae
- thalassia (Thalassia hemprichii) - Seagrass & Algae
- Species code: Si (Syringodium isoetifolium) - Seagrass & Algae
- halodule (Halodule uninervis) - Seagrass & Algae
- Jack (Selar crumenophthalmus) - Reef Fish
- Green Turtle (Chelonia mydas)
- Species code: Hp (Halodule pinifolia) - Seagrass & Algae
- Yellowstripe scad (Selaroides leptolepis) - Reef Fish
- Species code: Ea (Enhalus acoroides) - Seagrass & Algae
- Forest Halfbeak (Hemirhamphodon pogonognathus) - Reef Fish
- Blackstripe coris (Coris pictoides) - Reef Fish
- Rock Cod (Cephalopholis boenak) - Reef Fish
- Whale Shark (Rhincodon typus) - Sharks & Rays
- Curryfish (Stichopus vastus) - Sea Cucumbers
- Star Blaasop (Arothron stellatus) - Reef Fish
- Indian Scad (Decapterus russelli) - Reef Fish
- Greenfish (Stichopus chloronotus) - Sea Cucumbers
- Redspine Threadfin Bream (Nemipterus nemurus) - Reef Fish
- cowry (Monetaria moneta) - Sea Snails & Nudibranchs
Recommended Packing List for One Tree Bay
Based on average water temperature of 29.6°C, currents 20 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