South - Spectacular beaches, clear blue water and insane parties. Boasts sheer limestone cliffs, water sports, national parks and of course a throbbing nightlife.
Koh Phangan is most famous for the wildest beach party in the world - the Full Moon Party. Other than the party it’s a very laid back place you can explore on a bike and chill at one of the many beaches or viewpoints. You can only get in by ferry.
Koh Samui is one of the most romantic places in Thailand and a major honeymoon destination. It has superb beaches, world class spas and some lovely restaurants. There are places you can indulge in the nightlife as well. Samui is also a great place to spend time with your family. A popular day tour is to the Ang Thong marine national park.
Koh Tao is another tiny paradise island, best known for the splendid dive sites in the surrounding and the remarkably low cost of diving. Most people looking to do a scuba course head to Koh Tao. If you want to throw back, there are a few good bars you can hit too.