This archipelago of 42 islands covers some 250 square km (90 square miles) and lie 35 km (22 miles) northwest of Koh Samui. The seven main islands are Wua Talap Island (which houses the national park's headquarters), Phaluai Island, Mae Koh Island, Sam Sao Island, Hin Dap Island, Nai Phut Island, and Phai Luak Island. The islands feature limestone mountains, strangely shaped caves, and emerald-green water. Most tourists do a one-day trip, which can be arranged from Koh
Samui. Prices vary depending on the tour (some offer kayaking around several islands, others take you out on small speedboats for snorkeling or cave tours). The park is open year-round, although the seas can be rough and the waters less clear during the monsoon season between October and December.
Koh Samui, Thailand