The beautiful Boga Lake in the hilltract district of Bandarban, Chittagong, Bangladesh.There is a myth about the Boga Lake among the hillmen. A large dragon used to live in a cave in a near by village. It used to feed on domestic animal and even children. One; day, village people gathered. They trapped the dragon and killed it. It called for a festival. But, Immediately after that, the village caved in deep into the earth. Boga means dragon. The area is one lakh square metre. It is the only source of pure drinking water for the hill people. The most interesting aspect of this lake is that its water changes colour at different times of the day. (Source : Daily Star weekend magazine, Volume 4, Issue 3, Jully 9, 2004)