1. Lake Kaptai (Kaptai Lake):
- Located in Rangamati district in the Chittagong Hill Tracts in southeastern Bangladesh.
- Formed by the construction of the Karnaphuli Dam on the Karnaphuli River in 1962.
- Has a surface area of approximately 68,000 acres (27,500 hectares) and a maximum depth of about 170 feet (52 meters).
2. Hakaluki Haor:
- Located in the Mithamoin Upazila of Kishoreganj District in central Bangladesh.
- A large freshwater lake or wetland that covers an area of approximately 15,000 acres (6,000 hectares).
- Known for its rich biodiversity, including various fish species, reptiles, birds, and aquatic plants.
3. Beel Dakatia:
- Located in the Trishal Upazila of Mymensingh District in central Bangladesh.
- A large wetland or lake covering an area of approximately 8,000 acres (3,200 hectares).
- Important for fish production and provides habitats for numerous aquatic species.
These lakes are significant natural water bodies in Bangladesh, providing various ecological, economic, and social benefits to local communities.