KOH SAMUI is the third big island in Thailand located in the Gulf of Thailand with the area of 227 square kilometers. From north to south is 25 kms and east to west is 21 kms long. In the middle part of Koh Samui all are mountain area of jungle and some agriculture of durian, rambutan, mangoesteen and rubber plantations. Around Koh Samui are some nice beaches such as Chaweng Beach, Lamai Beachm Bophut Beach, Maenam Beach, Bang Por Beach, Lipa Noi Beach, Taling Ngam Beach, etc.
You can come to visit Koh Samui all around the year. But during November to December it is quite heavy rains. The average temperature all around the year is during 27- 33 degree celsius. In April is quite hot that reach nearly 40 degree. However, if you don't mind a lot of rain or very hot in sometimes, you can come to Samui any time of the year!!!
To get to Koh Samui you can take the flight with Bangkok Airways from Bangnkok, Chiang Mai, Krabi, Phuket, Utapao, and international flight from Hong Kong, Singapore and Kualalumpur. Some tourists take the flight from Bangkok (Don Muang Airport) to Suratthani with some low cost airlines such as Air Asia, Nok Air, Lion Air, then take the bus and ferry to Koh Samui, but takes about 4-5 hours more than the direct flight with Bangkok Airways.
By train from Bangkok also possible, start from Hualampong Station and take any southern line train to Suratthani station (takes about 8 hours long) then take the bus from Suratthani town to Donsak Pier and cross to Koh Samui by ferry, this is the cheapest way to come to Koh Samui, it takes quite long time but also worth to do because you will have a chance to touch the real life of local people in Thailand.