Bhasan Char, the site where Bangladesh has begun sending Rohingya refugees from the overcrowded camps at Cox’s Bazar, is an island formed by sedimentation (char is Bengali for sediment) close to the coast. Bangladesh’s plan is to move some 1 lakh refugees to Bhasan Char, 39 km from Naokhali on the mainland.
Bhasan Char is less an island and more mud flat, and is vulnerable to going under water from tides and flooding. Much of it is submerged during the monsoon.
Located near the mouth of the river Meghna where it flows into the Bay of Bengal, Bhasan Char surfaced only in 2006 from the sediment deposited by the river.
Located close to the much larger Sandwip, Bhasan Char spans 40 sq km.