My thanks to members of the forums for help received via hundreds of posts and responses.
Special thanks to Alan for the mountains of information, because of which I increased my familiarity with the Khao Lak area without even having been there. My OH and 14 y/o son blindly followed, knowing that I have the forum behind me for guidance.
I am writing my JBR in parts. Here is the first part, covering Khao Lak.
I hope you enjoy reading it as much as I have enjoyed reliving our memories.