The Similan complex of islands is located in the Andaman Sea, 70 kilometers off the mainland of Phang-Nga Province. “Similan” means “nine” in Malay as the archipelago consists of nine islands, but Similan  is also the name given to the eighth island in the group. All nine islands have official names: Koh Hu Yong, Koh Payang, Koh Payan, Koh Miang, Koh Ha, Koh Bayu, Koh Hin Pousar, Koh Similan, and Koh Ba Ngu accordingly. Instead of the Malay names, most sailors prefer to call these islands by numbers one to …