I went diving for 4 days in the Similans with a group of instructor trainees from Bangkok. All the guests were Thai,and the entire crew was Thai. I was the only Farang. Conditions were fabulous and we saw lots of big creatures, including turtles, Cuttlefish, Dolphins, Manta Rays, and a Whale Shark. These are my pics. A seperate gallery has pics from other cameras - mostly of the big stuff.