The total area is about 247 km² and it is located in the Gulf of Thailand, 700 km South of Bangkok in the Surat Thani province. There is a 55 kilometer long ring road on the island which makes it convenient to travel from beach to beach.
Well known beaches are Chaweng, Lamai, Bophut, Big Buddha, Choeng Mon, Hua Thanon and Maenam. Samui do also has many sister islands; Koh Tao (top diving destination in Asia), Koh Phangan (known for it's Full Moon Party etc.), Angthong National Marine Park, Koh Tan and the spectacular Koh Nang Yuan.How to get to Samui?Flight

2. With Thai Airways from Suvarnabhumi Airport in Bangkok. Either directly to Samui Airport, or to Suratthani Airport on the main land. From there you will have to take a bus, minivan or taxi to the ferry piers in Donsak. You can buy the ferry ticket at any of these piers.
Book the air tickets on internet directly from the airline or from any travel agency in Thailand.Bus

There are also buses from Phuket, Krabi, Pattaya and Hat Yai. The tickets can be bought at almost any local travel agency or directly at the bus terminals.
The bus will take you to Donsak or another pier at the coastline of the Surat Thani province. You can buy the ferry ticket at these piers, if you haven't purchased it already.Train

Your final destination (but not the trains') is the town of Suratthani. From there you will have to take a bus, minivan or taxi to the piers in Donsak. You are able to buy the ferry ticket at these piers.
Koh Samui's busiest and biggest town has sprung up around one of the island's best beaches. As well as offering more accommodation options than elsewhere on the island, Chaweng is also nightlife central with bars and restaurants catering to every taste.
From beachside institutions to sophisticated cocktail bars, Chaweng's nightlife is streets ahead of anywhere else on Samui in terms of choice.
The famous Green Mango strip still forms the axis around which the rest of the town's bars revolve and is packed with (mostly) young revellers every night, alternating between the pubs, dance bars and girly bars. Chaweng's main strip is nearly three kilometres long though, and lots of smaller centres of activity have sprung up along it. McDonalds' forms a landmark in the south of town just across the road from Chaweng's single most popular bar, Tropical Murphy's Irish pub.