Ran across an excellent recap of the post-tsunami diving conditions in the Thailand area in PADI’s Sprt Diver Magazine. From the sound of the article things do appear to be improving:
The local tsunami dive camps’ effort to systematically clean any and all damaged reefs and sea bottoms around the Phi Phi islands has made noticeable differences, which is encouraging for all involved. Andrew Hewett, general manager of the Adventure Club on Koh Phi Phi, says that he has been overwhelmed by the efforts made by people who have travelled across the world not only to assist on the dive project, but also to help the local people and victims of the tsunami. “It is a pleasure and a privilege to work with these people, who are devoting all of their time and energy. Their efforts are totally selfless and they wish nothing in return, just to know that they have made a difference. My hat goes off to them.”