Jenkins Whipray
Jenkins’ Whipray is one of the larger reef-associated rays occasionally encountered around Koh Tao. Growing up to around 1.5 metres across the disc (with an even longer whip-like tail), they are powerful yet graceful bottom dwellers.
They are typically sandy-brown to olive in colour with subtle spotting or mottling, perfectly camouflaged against the seabed. Unlike the more brightly coloured Blue-Spotted Stingray, Jenkins’ Whiprays rely on blending in rather than standing out.
Most often seen resting on sandy slopes or near reef edges, they lie partially buried with only their eyes and spiracles visible. When disturbed, they lift smoothly from the bottom and glide away with slow, controlled wingbeats before settling again further off.
Jenkins’ Whiprays are important benthic predators, feeding on crabs, shrimp, molluscs and small fish hidden beneath the sand. Using electroreceptors and sensitive mouthparts, they detect prey below the surface before uncovering it with powerful fin movements.
They are not aggressive toward divers. Like all stingrays, they carry a venomous spine on the tail purely for defence. Problems only arise if they are accidentally stepped on — which is why good buoyancy and careful finning over sandy areas are essential.
A close sighting of a large whipray resting on the seabed is an impressive moment — quiet, prehistoric and powerful.
Find Jenkins Whipray at...
Divemaster's tip
When crossing sandy slopes or moving between bommies, slow your fin kicks and look ahead. Their outline can be almost invisible against the sand.
If you spot one, approach slowly from the side rather than directly above. Give them space — if they choose to move, they’ll glide off calmly and settle again nearby.
What do they eat?
Jenkins’ Whiprays feed on crustaceans, molluscs and small bottom-dwelling fish. They use electroreception to detect prey beneath the sand and uncover it with powerful fin movements before consuming it.
They are primarily nocturnal hunters but can be seen resting during the day on sandy patches around Koh Tao’s reefs.
