Full Moon Party
Hat Rin, Ko Pha Ngan, Thailand - Every month, on the night of the full moon (unless it falls on a Buddhist holiday) - 1 night

Loi Krathong
Sukhothai, Thailand - November 11 - 1 day

Lopburi Banquet
Lopburi, Thailand - Late November - 1 day

Songkhran
Thailand - Mid-April - 3 days

Surin Elephant Round-Up
Surin, Thailand - Mid-November - 3 days