International seminar, held every three years, in order to introduce and enhance the potential of Brazilian and worldwide destinations for ecotourism. The action encourages the adoption of judicious procedure for environmental protection targets and results in the presentation of technical papers focused on issues of Ecotourism and Sustainable Tourism. These works are published as papers in the Congress Annals. The seminar already had four editions, involving delegations from 38 countries, including representatives of the World Tourism Organization and the World Ecotourism Society.