Advice as to what to do in the following places

Hello, there Getting married on March 30 2019, honeymoon as follows: (honeymoon starts April 1st)

-Amsterdam : 3 nights -Koh Samui (Island in Thailand) : 5 nights -Bangkok (Thailand) : 1 night -Tokyo (Japan) : 6 nights

Please, base your answers according to your experiences, thanks you all!