Maduganga is Sri Lanka’s largest remaining mangrove swamp, home to several fish and
reptile species. It’s a fantastic birding territory, too. Together with the smaller Randombe
Lake, which is situated closer to the ocean, but further south, and linked with Madu River by
two natural channels, it forms the Madu Ganga Wetland, inhabited by more than 300 species
of plants and almost 250 species of vertebrate animals. Due to its rich biodiversity, Madu
Ganga was listed under the International Ramsar Convention on Wetlands, an international
treaty for the conservation and sustainable use of wetlands.