SRC:https://www.tripsavvy.com/islands-in-thailand-1458562 Thailand Best Beaches
Once attracting mostly just scuba divers and backpackers, Koh Tao on the east side of Thailand has transformed in recent years as a popular island destination in the Gulf of Thailand for everyone.
Koh Tao is way smaller and cheaper than nearby Koh Samui, so it still attracts a lot of young budget travelers. But like many islands once the realm of backpackers, upscale places continue to spring up – particularly in the southern part of the island.
Sairee Beach can get rowdy with pub crawls and beach parties, but the island is quiet during the week of the Full Moon Party as most travelers head over to Koh Pha Ngan to party.
With scores of dive shops boasting excellent staff and equipment, Koh Tao is still the most popular place in the world to get PADI certified for scuba diving. You can opt for a Discover Scuba course if you just want the experience. Snorkeling trips are available to the many reefs for non-divers.