Asia’s hottest travel destination has long been Thailand. There is so much to do in Thailand, from the endless shopping opportunities in chaotic Bangkok to the endless adventure in Chiang Mai and its surrounding area, to the secluded islands and party beaches along the Andaman Sea, travelers could spend years there without being able to see everything. During February through May, when the weather is most pleasant, and during November through January, when tourists leave their countries because of the cold weather.