Ecotourism has arguably been the most widely discussed issue in tourism for the past two decades. With a marked rise of the term in the mid and late 1980s, ecotourism has been hoped by conservationists to alter the negative effects brought by traditional mass tourism, and even more highly anticipated by sociologists to transform local societies to create a global society of ecotourism. It is seen by tourism industry as an emerging lucrative product of sightseeing while viewed by the public sector as a means to spur regional and economic development. With over a hundred definitions and various expectations given to it, ecotourism is no doubt a hot topic for debate. Such multiplicity in its meaning and diversity in its interpretation have brought hopes as well as worries. With different imaginations and respective ways of engagement by various circles, some successes in promoting ecotourism have indeed been achieved in parts of the world, while some failures have also been incurred due to the disparity in the understanding between policy makers and executors, which had once happened in Taiwan's ecotourism.