Scuba Lanka - Trincomalee & East Coast

Scuba Lanka, off Trinco’s coast, is one of those spots we always try to hit when we're in the area. It’s a gentle drift, usually, a nice way to ease into the day. The site itself isn’t about huge pelagics, though we have seen the occasional Great Barracuda eye us up. What we love here is the sheer density of the smaller stuff. The reef structure is a bit ambiguous, but we’re often just gliding over sandy patches interspersed with rocky outcrops and bits of seagrass. Keep your eyes peeled low. You’ll spot Peacock Wrasse flitting through the gloom, and if you’re patient, the odd Mangrove Crocodilefish will reveal itself, perfectly camouflaged. We’ve had great fun watching the tiny Adorned Dwarfgobies darting between the coral rubble. Our favourite part has to be searching for the Bicolor Blennies – they pop out of their little holes, all personality. It’s a great site for photographers who enjoy macro and slow, deliberate exploration. If you’re into the subtle, vibrant life of a healthy shallow reef, this place truly delivers.

Location: Trincomalee & East Coast, Sri Lanka, Indian Ocean & East Africa
Coordinates: 8.610497, 81.219010

Marine Protected Area: Little Sober Island

Best Time to Dive in Trincomalee & East Coast

The warmest water temperatures in Trincomalee & East Coast occur in January, averaging 27.4°C. The coolest conditions are in December at 27.4°C.

Monthly Water Temperatures

January: 27.4°C (air: 25.8°C)
February: 27.4°C (air: 26.3°C)
March: 27.4°C (air: 27.3°C)
April: 27.4°C (air: 28.2°C)
May: 27.4°C (air: 28.9°C)
June: 27.4°C (air: 29.6°C)
July: 27.4°C (air: 29.4°C)
August: 27.4°C (air: 28.9°C)
September: 27.4°C (air: 28.7°C)
October: 27.4°C (air: 27.2°C)
November: 27.4°C (air: 26.0°C)
December: 27.4°C (air: 25.9°C)

Nearest Dive Centres to Scuba Lanka

Coco Diving Trincomalee - ["PADI"]
Dive For You - ["PADI"]
Epic Ocean Adventures - ["PADI"]
International Diving School Trincomalee - ["PADI"]
Poseidon Diving Centre - ["PADI"]
Sri Lanka Dive School

Marine Life in Trincomalee & East Coast

Home to 259 recorded species including 205 reef fish, 16 hard corals, 14 sea snails & nudibranchs, 7 sharks & rays, 6 seagrass & algae, 5 whales & dolphins.

Notable Species

Giant trevally (Caranx ignobilis) - Reef Fish
Big-eye trevally (Caranx sexfasciatus) - Reef Fish
Golden trevally (Gnathanodon speciosus) - Reef Fish
cloth-of-gold cone snail (Conus textile) - Sea Snails & Nudibranchs
Jack (Selar crumenophthalmus) - Reef Fish
Silver Sillago (Sillago sihama) - Reef Fish
Red lionfish (Pterois miles) - Reef Fish
Species code: Ea (Enhalus acoroides) - Seagrass & Algae
Bicolor Blenny (Ecsenius bicolor) - Reef Fish
Wrasse (Stethojulis interrupta) - Reef Fish
Small-eyed Squirrelfish (Myripristis murdjan) - Reef Fish
Necklace Cone (Conus monile) - Sea Snails & Nudibranchs
Manini (Acanthurus triostegus) - Reef Fish
Spangled emperor (Lethrinus nebulosus) - Reef Fish
Blue-lined Surgeonfish (Acanthurus lineatus) - Reef Fish
Redcoat (Sargocentron rubrum) - Reef Fish
Five-lined snapper (Lutjanus quinquelineatus) - Reef Fish
Herring Scad (Alepes vari) - Reef Fish
Dusky Wrasse (Halichoeres marginatus) - Reef Fish
Blue and Gold Fusilier (Caesio caerulaurea) - Reef Fish

Recommended Packing List for Scuba Lanka

Based on average water temperature of 27.4°C.

Shorty or Rashguard - warm 27°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