Fresh Air plz

There is a plan of going for Spa in Krabi or may be adventure in Cambodia but it never turn up so far. Want to go alone but I'm afraid; ask friends to join, either they want somewhere for shopping or not interested with poor country or old buildings/forest.
Arrgh... All of them are just too citilized to live in natural environment. Ask my darling to schedule some times for these, end up: Y can't pick somewhere v can enjoy eating? Not again to Thailand!!... (V been to Thailand many times as I work in Thai Airways)
Somehow, I just want to be alone in somewhere full of memories, stories, histories and quiet so I can really appreaciate of a culture. Guess I'm just not mean to be a "Tomb Raider"
I really need to made this trip to give myself some fresh air! I think I'll be drowning with my works soon. Hope my leave will be approved before this X'mas. :)