It is clear that ecotourism is a subset of tourism and that it refers to sue of natural/ecological resources and usually entry into sensitive and fragile environment. Many might think ecotourism is the same as nature-based tourism, while other considers that an objective, Value free definition is needed. Ultimately, it is the case that people who use the term determine the meaning of the term ecotourism as they intend it.
"Environmentally responsible travel to natural areas, in order to enjoy and appreciate nature (and accompanying cultural features, both past and present) that promote conservation, have a low visitor impact and provide for beneficially active socio-economic involvement of local peoples.