Development that meets the needs of the present without compromising the ability of future generations to meet their own needs
(The Brundtland Commission/ the 1987 Report: Our Common Future by World Commission on Environment and Development for the United Nations)
The tourism development that meets the needs of present tourists and host regions while protecting and enhancing opportunities for the future. It is envisaged as leading to management of all resources in such a way that economic, social and aesthetic needs can be fulfilled while maintaining cultural integrity, essential ecological process, biological diversity and life support systems” (UNWTO)