St. Martin's Island is a small island in the northeastern part of the Bay of Bengal, about 9 km south of the tip of the Cox's Bazar-Teknaf peninsula, and forming the southernmost part of Bangladesh. It is about 8 km west of the northwest coast of Myanmar, at the mouth of the Naf River. 1st settlement started just 250 years ago by some Arabian Sailors and named as ‘Zajira’. During British occupation the island was named as St. Martin Island. The local name of the island is "Narical Gingira", also spelled "Narikel Jinjira/Jinjera", means 'Coconut Island' in Bengali. It is the only coral island in Bangladesh.