First time in Thailand....arriving 1 Dec. Staying in Bangkok for 10 days. Then we were just going to decide where to go after that. But thinking with it being holiday season.(busy?) ..is it best to book something now...say Chang Mai for a month...or Hua Hin? Suggestions would be welcome..we are on a 45 day except and can extend for another 30. Originally we were doing Bangkok, Chang Mai, Hua Hin, Koh Samui and Krabi. Few weeks in each place. Then down to KL. But now thinking a month in either CM or HH? Then on from there. We are Canadian fairly fit seniors.