I am coming in December. I am an avid scuba diver. I would like to visit the best sites Thailand has to offer without having to do a liveaboard. Can any one recommend a base? I've thought of staying in Phuket but hear the distance to the dives is long and it is quite expensive. I'm willing to invest the time and money if I have to, but was wondering if there might be any insider tips available from those that have been there or destination guides.