Although ecotourists claim to be educationally sophisticated and environmentally concerned, they rarely understand the ecological consequences of their visits and how their day-to-day activities append physical impacts on the environment. As one scientist observes, they "rarely acknowledge how the meals they eat, the toilets they flush, the water they drink, and so on, are all part of broader regional economic and ecological systems they are helping to reconfigure with their very activities." Nor do ecotourists recognize the great consumption of non-renewable energy required to arrive at their destination, which is typically more remote than conventional tourism destinations. For instance, an exotic journey to a place 10,000 kilometers away consumes about 700 liters of fuel per person.Ecotourism activities are, in and of themselves, issues in environmental impact because they may disturb fauna and flora. Ecotourists believe that because they are only taking pictures and leaving footprints, they keep ecotourism sites pristine, but even harmless-sounding activities such as nature hikes can be ecologically destructive. In the Annapurna Circuit in Nepal, ecotourists have worn down the marked trails and created alternate routes, contributing to soil impaction, erosion, and plant damage. Where the ecotourism activity involves wildlife viewing, it can scare away animals, disrupt their feeding and nesting sites, or acclimate them to the presence of people. In Kenya, wildlife-observer disruption drives cheetahs off their reserves, increasing the risk of inbreeding and further endangering the species.
Although there is a communal incentive to protect the environment, maximizing the benefits in the long run, a company will conclude that it is in their best interest to utilize the ecotourism site beyond its sustainable level. By increasing the number of ecotourists, for instance, a company gains all the economic benefit while paying only a part of the environmental cost. In the same way, a company recognizes that there is no incentive to actively protect the environment; they bear all the costs, while the benefits are shared by all other companies. The result, again, is mismanagement. Taken together, the mobility of foreign investment and lack of economic incentive for environmental protection means that ecotourism companies are disposed to establishing themselves in new sites once their existing one is sufficiently degraded. In addition, the systematic literature review conducted by Cabral and Dhar (2019) have identified several challenges due to slow progression of ecotourism initiatives such as (a) economic leakages, (b) lack of government involvement, (c) skill deficiency among the local communities, (d) absence of disseminating environmental education, (e) sporadic increase in pollution, (f) conflict between tourism management personnel and local communities and (g) inadequate infrastructure development. Case studies
The purpose of ecotourism is to engage tourists in low impact, non-consumptive and locally oriented environments in order to maintain species and habitats — especially in underdeveloped regions.