Shark Bay is a private bay on Koh Tao boasting a stunning beach with fine white sand. It is shaded by tall coconut trees and a unique plant known as Pemphis Acidula, locally referred to as ‘Thian,’ which is how the bay got its original name, Thian Og Bay.
Situated on the serene island of Koh Tao, Shark Bay offers a tranquil, relaxing setting. Its name derives from the frequent appearances of Blacktip reef sharks in this area. There is an admission fee to access the main beach. However, you can also reach the bay by boat or kayak. Alternatively, you can access the bay (but not the main beach) through hotels on the east side of Chalok Baan Kao Bay, which connect to the western side of Shark Bay. This part of Koh Tao also serves as a nursery area for young Blacktip reef sharks, making it possible to spot them at certain times of the year. To see the larger sharks, you’ll need to swim about 250 metres from the beach to an area where the water is around 2–3 metres deep. They are most commonly found near the east shore, close to Sai Daeng Beach. During their pupping season (January to March), it is common to see many adult female sharks throughout the bay.
If you wish to snorkel here with a professional guide, Oxygen Tour offers the “Around Island” snorkeling tour, which visits five prime spots around Koh Tao: Shark Bay, Aow Leuk, Koh Nang Yuan, Mango Bay, and Hin Wong Bay, providing additional opportunities to see sea turtles and blacktip reef sharks. Click here for more information.
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Shark Bay offers a tranquil, relaxing setting. It is shaded by tall coconut trees and a unique plant known as Pemphis Acidula.



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