On July 2005, my friends and I made a short trip to Samui Island (Koh Samui or เกาะสมุย). At that time I had a chance to visit Nang Yuan Island (Koh Nang Yuan or เกาะนางยวน) and Tao Island (Koh Tao or เกาะเต่า). It was a one day trip, so we spent only few hours on