sundarban reserve forest of bangladesh the largest mangrove forest in the world

alluvial bangladesh bay beauty bengal biodiversity brackish brahmaputra coastline conservation ecosystem environment estuary exotic flora forest ganges green heritage journey jungle khulna landscape mangrove mangroves meghna mud national nature park rainforest reforestation rhizophora river scenery scenic season site soil sundarban sundarbans swamp terrestrial tranquility travel trees tropical unesco vegetation walk water wetlands wilderness world