Source: BBC News

Situated in the blue waters of the Bay of Bengal, St Martin Island is one of the most beautiful places in Bangladesh.

Popular with both local and foreign tourists, it is a coral island of sandy beaches, coconut palms and bountiful marine life. The island does not have grid electricity, so everything is run on generators.

But environmentalists are expressing concern over the increasing number of tourists, pollution and excessive fishing, which they say are threatening this unique eco-system.

The BBC’s Anbarasan Ethirajan has been to St Martin Island to find out more.