On Shark Island dive site, Koh Tao, always raises the same question from first-timers, are there actually sharks? The answer is no, at least no more than anywhere else on Thailand’s diving island. The name comes purely from the shape of the rock above the surface, which from a distance resembles a dorsal fin cutting through the waves. Below the surface, however, the story is altogether more welcoming. An exceptional coral reef teeming with giant groupers, moray eels, blue-spotted rays, nudibranchs and angelfish. A site open to all levels, 40 minutes from Mae Haad.

Shark Island dive site Koh Tao: behind the name

Shark Island takes its name from its profile above the water. Seen from a distance, this granite rock rising out of the sea off the south-east coast of Koh Tao looks remarkably like a shark’s dorsal fin. It is a striking optical illusion and a name that never fails to raise a smile once divers are underwater. Where the atmosphere is considerably more peaceful than the name suggests.

Located 40 minutes by boat from Mae Haad pier, Shark Island is one of the most accessible all-levels sites on Thailand’s diving island. Its maximum depth of 18 metres, gentle to moderate current and exceptionally rich coral reef make it a welcome destination for Try Scuba beginners and experienced certified divers alike, particularly those with a passion for macro life and underwater photography.

The coral reef at Shark Island — exceptional richness on Koh Tao

The defining strength of Shark Island is the density and diversity of its coral. Branching corals, massive corals and table corals succeed one another along the rocky walls, creating an extraordinarily rich habitat for reef life. Unlike some Koh Tao sites whose corals have suffered over the years. Shark Island maintains a reef in good health, colourful, alive and genuinely worth exploring slowly.

Furthermore, this coastal reef is particularly photogenic: light filtering down from the surface illuminates the corals and creates ideal conditions for underwater photography. As a result, Shark Island has become one of Koh Tao’s favourite sites for divers pursuing the SSI Underwater Photography specialty course.

Marine life at Shark Island Koh Tao: what you’ll encounter

Shark Island rewards divers who slow down and look carefully. Behind every coral head, in every crack in the rock, a quiet but abundant life waits to be discovered. Our multilingual dive guides love bringing divers here precisely for that quality of unhurried, detail-rich exploration.

What level do you need to dive Shark Island Koh Tao?

Shark Island is accessible to all levels, from complete beginners on a Try Scuba experience to Advanced Open Water certified divers. Its maximum depth of 18 metres, gentle to moderate current and coastal reef configuration make it a reassuring and enjoyable site for first-timers, while its marine diversity and macro life keep experienced divers equally engaged.

Furthermore, the macro richness of the site makes it a natural fit for the SSI Underwater Photography specialty course. Whether you are diving for the first time or the hundredth, Shark Island always has something new to offer.

Dive Shark Island with The Divers Boat, Koh Tao

The Divers Boat organises fun dive trips to Shark Island from Koh Tao, departing from Mae Haad. On the main pier on Thailand’s diving island. The journey takes approximately 40 minutes by boat. Our blue boat is dedicated exclusively to our divers: small groups, attentive multilingual guides and a relaxed, welcoming atmosphere for every level.

In practice, Shark Island pairs naturally with other south-east Koh Tao sites for a complete and varied dive day. Contact our team to book your Try Scuba experience or fun dive at this colourful corner of Thailand’s diving island.