Where to snorkel in Koh Tao? Koh Tao is a small island in the Gulf of Thailand a short ferry ride away from Chumphon on the mainland or the larger island of Koh Samui to the south. It is a mecca for diver training, thousands of people learn to dive on Koh Tao each year and dive shops abound. But you can enjoy the underwater world just as easily with Read More …