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to carry growing successes into the future in such a way that future generations are not troubled (Pearce et al., 1990).

The concept of sustainability first appeared on the public sense in the report by the World Commission on Environment and Development in 1987. The outline of sustainable development is that the economic growth and the environmental conservation are not only friendly but they are partners and one cannot survive without than other .The Brundtland Commission Report definite sustainable development as ‘development that meets the needs of the present without compromising the ability of future generations to meet their own needs’ (WCED, 1987). The Commission highlighted that sustainable development is not a fixed national agreement, but an active process of changes which ‘are all in harmony and enhance both current and future potential to meet human needs and aspirations’ (WCED, 1987: 46). It is imagined 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 processes, and biological diversity and life support systems. In brief sustainable tourism consists in conserving and preserving an environment for the future generations and providing socio and economic benefits to all stakeholders.

According to Gunn (1994), the most applicable definition is given by Rees in 1989. The definition is “Sustainable development is positive socio-economic change that does not undermine the ecological and social systems upon which communities and society are dependent. Its successful implementation requires integrated policy, Planning and social learning process; its political viability depends on the full support of the people it affects through their governments, their social institutions, and their private activities.”

Sustainable tourism industry

Tourism has become a major economic activity within developed and developing countries, often contributing more foreign currency than traditional primary commodity exports. The growth in the tourism sector and its maturity made people concern that the resources of host countries might be exhausted. Attention have been paid to the relationship between tourism and the environment and to the problems associated with tourism expansion (Pearce 1985; Romeril 1989; Farrell and Runyan 1991; Cater and Godall 2002; Eber 1992; Jenner and Smith 1992). The sustainable development concept arose in response to broader international concerns over ecological issues and has been advocated for the tourism sector as a possible solution to the environmental and social degradation of the industry’s resources and due to the fact that tourism is a resource dependent industry (Cooper, 1995; Murphy, 1998).

In a research done by Zhenhua liu (2003) found that sustainability is praised by Bramwell and Lane (1993) and according to them “it is a positive approach intended to reduce the tensions and friction created by the complex interactions between the tourism industry, tourists, environment and the host communities to maintain the long term capacity and quality of both natural and human resources”. There are three objectives of sustainable tourism identified by Cater (1993).

Meeting the needs of the host population in terms of improved living standards both in the short and long term;

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