Though tourist destinations in Ingiria are popular among domestic tourists, lack of well-managed tourism strategy has exploited the landscape. Water and landscape are as precious resources have the potentiality to implement an integrated regional alternative tourism development plan for Ingiriya. Identifying water tourism as a strategy to manage water-based ecosystems sustainably,this study assesses the physical-chemical quality of water and landscape quality and their suitability in selected destinations for water tourism. The study mainly depends on the primary data. Using various data collection methods primary data were obtained while Leopold method, Environment Area Analysis used to analyze primary data. Water samples were collected randomly in order to assess the water quality for tourism activities. Among six destinations four were selected while Nachchimale selected as a suitable destination for water tourism. Using Nachchimale as the core destination of the water tourism a regional water tourism zone can be implemented in Ingiriya. The study has identified a few constraints where government intervention is highly required to implement water tourism.