Sea Dragon out of Khao Lak do a 3day/3night option. We could do a package for you with the Krabi diving included. From Ao Nang you have Phi Phi, Bidas (all 3, don't forget Hin Bida), Shark Point, Anemone Reef, King Cruiser......... Off down to Hin Daeng this Tuesday, got a speed boat charter...