The Whale shark is the largest fish in the ocean, growing up to 12 meters long — and sometimes even bigger. Despite the name, it’s not a whale — it’s a shark. But unlike most sharks, it’s a filter feeder, meaning it feeds on plankton, fish eggs and tiny...
Often called a “guitar shark,” the Guitarfish is actually a type of ray with a body shape that looks like a mix between a shark and a stingray. It has a flattened body and broad pectoral fins like a ray, but a distinct shark-like tail and dorsal...
The Grey Reef Shark is a sleek, powerful reef predator and one of the most iconic shark species of the Indo-Pacific. Recognisable by its streamlined grey body, white underside and distinctive black edging on the tail fin, it is built for speed and agility. Growing up...
The Bull Shark is one of the ocean’s most powerful and adaptable predators. Recognisable by its stocky body, broad blunt snout and confident, steady movement, this species has a reputation for strength and resilience. Unlike many other sharks, Bull Sharks can tolerate freshwater and are known globally...
The Blacktip reef shark is a species of requiem shark from the family Carcharhinidae. It can be easily identified by the prominent black tips on its fins, especially the dorsal fin. These are among the most abundant sharks inhabiting the tropical coral reefs of the Indian and...
The Leopard Shark — more accurately known as the Zebra Shark — is one of the most iconic and photogenic sharks found around Koh Tao. Adults are easily recognised by their creamy-yellow bodies covered in dark leopard-like spots, while juveniles display bold zebra stripes (which is where...
The Sailfish is one of the fastest fish in the ocean — a true pelagic predator built for speed. Instantly recognisable by its enormous sail-like dorsal fin and long, spear-shaped bill, this sleek hunter is designed for life in open water. Around Koh Tao and the...
Around Koh Tao, you’ll most often see Bigeye Trevally schooling in tight formations around pinnacles, while Giant Trevally tend to patrol more independently. Bluefin Trevally add a flash of electric blue to the reef, especially when hunting. They are unmistakable in motion — muscular bodies, deeply forked tails and explosive...
Snappers are medium to large reef fish recognised by their streamlined bodies, large mouths and often reddish, yellow or silver colouration. They are strong swimmers and commonly form schools along reef slopes and pinnacles. Around Koh Tao, divers most often see schooling snappers hovering just above...
