Narathiwat province Koh Losin is a newly discovered dive site located approximately 100 km east of Narathiwat province in the Gulf of Thailand. The island can be reached by going through live-aboard tour opeartors in both Pattani and Narathiwat. The trip from the shore to Losin takes about five hours. Losin is a tiny island. It boasts the only working lighthouse in a radius of 100 square kilometres in this pat of the Gulf.
Big fish are abundant because of the distance from the shore and the untouched reef.
Hammerhead sharks have been spotted. The diving site is between 12 mere and 25 metres and visibility between five metres and 25 metres. With an abundance of coral, it is considered one of the best sites in the Gulf. Koh Tao currently boasts more than 25 sits and new ones are being discovered all the time. The diving is varied enough to suit all levels.