The backpacking trail through Southeast Asia is well worn. Starting in beautiful Thailand, the trail makes its way to up and coming Laos, through Vietnam, and through the temples of Angkor Wat, Cambodia. It then heads back into Thailand, where people head south to party in the Thai Islands before moving South into Malaysia and Singapore.
The warm months of November-April draw the biggest crowds. Everyone is escaping the cold in Europe, and it is not too hot an humid like the Summer months.