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Tourism that involves visiting scenic or remote natural areas while attempting to minimize negative impacts on the environment and on the local inhabitants.
e′co·tour′ist adj. & n.
(Environmental Science) tourism that is designed to contribute to the protection of the environment or at least minimize damage to it, often involving travel to areas of natural interest in developing countries or participation in environmental projects
ec•o•tour•ism(ˌɛk oʊˈtʊər ɪz əm, ˈi koʊ-)
tourism to places having unspoiled natural resources.