Shark Bay, Koh Tao
(Thian Og Bay)

Shark Bay is a private bay with a beautiful beach of fine white sand.

It is shaded by tall coconut trees and Pemphis Acidula which is called ‘Thian’ by the locals, thereby giving the bay its original name – ‘Thian Og’.
Thian Og is a lovely, quiet place to come and relax. It is known as ‘Shark Bay’ due to the blacktip reef sharks that frequent here. An entrance fee is charged. You can also visit the bay by boat or kayak. Alternative ways of access can be found via a few resorts in Chalok Baan Kao Bay’s east coast that connect to Shark Bay’s west shore (not at the main beach). This area is also a shark nursery where young sharks can be seen at certain times of the year. There are larger sharks, and to see them you need to swim out about 250 metres from the beach to where it drops down deeper to 3 – 4 metres. They are more likely to be found around the east shore close to Sai Daeng Beach.

Look out for green turtles as well, as these live in this bay too and are amazing to see. Some of them are huge, larger than a metre long. They are friendly and not afraid of humans and can sometimes swim very close to you. Please be sure to not touch them as bacteria on our skin can greatly affect their health and can cause them harm. Though the coral reef in the bay was vastly destroyed by El Nino in 1998, Shark Bay is the only place where you can find turtles every day.

Show on Map

Cape Shark

Thian Og is a quiet place to come and relax. It is also known as Shark Bay due to the many blacktip reef sharks that frequent here.

Koh Tao accommodation in Shark Bay

Accommodation in
Shark Bay, Koh Tao

There is a choice of accommodation, with resorts on either side of the bay and on the hill. Scenic seaviews are easily found and wide vistas of the white sand beach can be seen from the hilltop…


Koh Tao Snorkelling and Sightseeing Trip around island

Shark Bay Photo Gallery

Click to enlarge image

Snorkelling with Turtles at Shark Bay, Koh Tao

Road access
Best access by boat. An entrance fee is charged.