Lake Mainit is the fourth largest lake in the Philippines, having a surface area of . The lake is also the deepest lake in the country with maximum depth reaching . It is located in the northeastern section of Mindanao and shared between the provinces of Surigao del Norte and Agusan del Norte. Etymology The name of the lake is a Visayan word mainit, which means "hot". Flora and fauna Plants Fire orchid (Vanda hookeriana) Narra tree (Pterocarpus indicus) Molave tree (Vitex parviflora) Philippine rosewood or "toog" Kamagong Mancono Malabayabas (Eucalyptus spp.) Indian lotus (Nelumbo nucifera) Animals Animals Mindanao scops owl Mindanao savanna nightjar Mindanao Himalayan swiftlet Mindanao forest kingfisher White-breasted sea eagle (Haliaeetus leucogaster) Monkeys Wild pigs Fish "Casili" (Anguilla spp.) Mudfish, "hayuan" or "halwan" (Channa striata) Gurami (Gourami belontiidae) "Bolinao" (Neostethus thessa) Common carp (Cyprinus carpio) "Tilapia" (Oreochromis niloticus) List Municipalities bordering the lake Mainit, Surigao del Norte Alegria, Surigao del Norte Jabonga, Agusan del Norte Kitcharao, Agusan del Norte Municipalities within Lake Mainit's watershed Alegria, Surigao del Norte, Sison, Surigao del Norte Tubod, Surigao del Norte Mainit, Surigao del Norte Kitcharao, Agusan del Norte Jabonga, Agusan del Norte Santiago, Agusan del Norte Tubay, Agusan del Norte References Further reading A Directory of Philippine Wetlands. Vol I, compiled by Davies, J. et al. (Asian Wetland Bureau Philippines Foundation, Inc, 1991) Webpage on Lake Minit (cited part available online) External links Lake Mainit Updates Lake Mainit Development Alliance LMDA Updates Mainit