Shark Bay

Shark Bay is a natural beach and snorkeling destination on Koh Samui, drawing visitors with its clear waters, soft corals, and the genuine possibility of encountering sea turtles and small sharks in their natural habitat. Unlike the island's more developed beaches, the bay retains a quieter, more natural character, making it a worthwhile stop for those interested in marine life rather than beach loungers and cocktail bars. Visitors typically arrive as part of an organised snorkeling or diving tour, which is the recommended way to make the most of the underwater scenery. Corals and fish are abundant, and sea turtle sightings are reported regularly. The water clarity can vary depending on weather conditions, with overcast days sometimes bringing murky visibility, so timing matters. Note that the shoreline has coral fragments and rocks near the water's edge, so water shoes are strongly advised to avoid cuts. Good to know: access to the beach currently runs through the Haad Tien resort, which charges an entry fee of around 200 THB per person. This arrangement is a point of frustration for some visitors, as the beach itself is publicly accessible. Booking through a tour operator such as a snorkeling day trip can be a practical way to visit while managing costs and transport. Sunny mornings generally offer the best water visibility and conditions for spotting marine life.