First, let’s take a look at Koh Samui. Thailand's second largest island (Phuket is the largest) is famous for its palm-fringed beaches, coconut groves and dense, mountainous rainforest, plus a range of accommodations to suit all budgets and up-market spas. The island has its own airport (as does Phuket) and extensive road infrastructure. Transfers from Thailand's capital, Bangkok, are easy and plentiful. The best time to visit Koh Samui is in the dry season, from January to July. Connected to Koh Samui by a causeway is the world-famous 12m-tall golden Big Buddha statue at the Wat Phra Yai Temple on a nearby tiny island.
Koh Samui is very much a tourist destination though it is perhaps a little less well-known to international travellers than Phuket. If you are after a lively beach scene, Phuket is of course the place to be, but if you prefer a calmer vibe you couldn't do better than going to Koh Samui.
And now for the fun stuff.
While relaxing at the beach with your kids (Koh Samui is very child-friendly) and swimming in the unbelievably blue waters are basically the main reasons for visiting Koh Samui, there are plenty of other things to see and do as well. But let’s start off with water-based activities. Why not try your hand at sea kayaking or for something completely different, rent a paddleboard and try stand-up paddle-boarding. There are many great snorkelling and scuba diving spots spread around the island while boat trips are available to visit the outer coral reefs. Visit the famous attractions of Grandfather and Grandmother Rocks and other rocky beaches. Swim under a waterfall.
Land-based activities include visiting a Chinese pagoda, the numerous temples (one even housing a mummified monk!), street markets where sampling the local cuisine is a "must-do" (or else take a Thai cooking class of your own), rock (boulder) climbing and rappelling, watch pigs running across a beach to greet you (a must-see for the youngsters) as you go island hopping, climb to viewpoints offering incredible vistas, go on a guided jeep tour, visit an elephant sanctuary, take in a "ladyboy" cabaret show, relax with a Thai massage.