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Tourism is now known as the world's largest industry and a major foreign exchange earner for many countries. With continuously growing tourist numbers, pressure on resources increases, and there is a need to preserve and protect natural, cultural and historic resources. Various more sensitive forms of tourism have emerged and in recognition of the need for this development the United Nations proclaimed 2002 as the International Year of Ecotourism. This book introduces the reader to a number of case studies from different parts of the world and illustrates opportunities and constraints associated with the implementation of the ecotourism concept.