00kmAkkarayan AruKanakarayan AruKodalikkallu AruMadu GangaMandekal AruMavil AruNay Aru (Mannar)Nay Aru (Mullaitivu)Netheli AruNilwala RiverPali AruPallavarayankaddu AruParangi AruPer AruPiramenthal AruTheravil AruValukkai AruVerugal Aruවේලි සහජලාශWith hydroelectriccapabilitiesBowatennaBroadlandsCanyonCastlereighDeduru OyaDyraabaGal OyaKotmaleKukule GangaLaxapanaMaskeliyaMoragahakandaMoragollaNilambeNortonPolgollaRandenigalaRantembeSamanalaUdawalaweUpper KotmaleVictoriaIrrigation-only(incl. ancient tanks)Beira LakeDiyawannaGiant's Tankගිරිතලේ වැවInginimitiyaIranamadu Tankකලා වැවKalu GangaKandalamaKandy LakeKantaleLake GregoryLunugamweheraMaduru OyaMinneriya TankMuthuiyankaddu KulamPuhulpolaRajanganayaRambakan OyaRatkindaTissa Wewa (Anuradhapura)Tissa Wewa (Tissamaharama)UlhitiyaVavuni KulamකළපුEast coastBatticaloa LagoonChalai LagoonChundikkulam LagoonKokkilai LagoonKokkilai LagoonNai Aru LagoonNanthi LagoonUllac