There will be a lot of camping on the beach, snorkeling in reefs, tromping through mangrove forests, and sea kayaking (on the Andaman Sea)
We stay in a Muslim village for 9 days, fish with them, and learn how they live with the ocean on a subsistence level.
There may be sea turtles,
there may be dugongs (endangered, and only found in thailand),
I may decide to stay down there forever.