My wife and I are headed to Thailand next week. I'm sure that we aren't giving ourselves enough time in each location but we wanted to try and see as much as we could.

Nov 23, 24 in Bangkok
Nov 24 flying to Chiang Rai
Nov 25 bus from Chiang Rai to Chiang Mai
Nov 28 flying from Chiang Mai to Krabi
Dec 2 flying from Trang to Bangkok

Open to suggestions for the best possible trip within these constraints.