They include among others
the need to minimize negative impacts on nature
and culture that can damage a destination, stress
the importance of responsible business to meet
local needs and deliver conservation benefits,
direct revenues to the conservation and
management of natural and protected areas.
General environmental law principles such as the
responsibility not to cause environmental damage
and the environmental impact assessment
principles are, in any case, applicable to
ecotourism (Rio Declaration, Principles 2 and 17)