I just returned from an awesome dive trip to Phuket, Similan and Surin Islands. Went to Phi Phi and it was great diving. I went through a private dive instructor who made all the arrangements, knew the dive site, much more personal, and personal attention -- safe, reliable, good person. He's american, living in Phuket as dive instructor for a couple of years. He's much cheaper to go through also, and will make the arrangements and make sure no surprises or changes in amount, etc. which believe me occurs alot in Phuket and surrounding areas. Contact him for consideration -- Ross James divingandsnorkelling@gmail.com