They do not include any domestic tourism which can readily be anticipated to equal the international. It is obvious that most of this increase will have to be absorbed by cities. The most recent trends and forecasting studies by the World Tourism Organisation indicate that cities will continue to be in high demand by tourists of all sorts, and the problems associated with the handling of these tourists will have to be more systematically tackled by all parties concerned.
Cities face, therefore, a double challenge.
Secondly, cities have to ensure that tourism is developed and managed in such a way that it benefits the resident population, does not contribute to the deterioration of the urban environment but rather to its enhancement, and does not become a financial burden to the local authority. Impacts - economic and development opportunities as well as the impact of tourism growth on sustainable development, transportation, cultural and environmental, social and economic aspects.