Eighteen percent of the area of the Park overlaps with the ancestral indigenous territories mainly of the Ticuna ethnicity, but there are also, in smaller numbers, Yagua and Cocoma indigenpous communities and mestizo families. Since the Spanish Conquest, indigenous traditions in the area of three frontiers (Peru, Brazil and Colombia) have been heavily affected by the the destructive intensity of extractive activities, such as gold rubber, fur, wood, drug trafficking and minning booms, that brought illnesses, violenece and slavery, among other situations, damaging the natural and cultural wealth of the area. Today, indigenpous communities try to balanace traditional life with the demands of living in a social State of law and in a global capitalist system. The ticiuna´s primary subsistence activities are fishing, agriculture, hunting, ecotourism, handcrafyt production, research and monitoring of the rsources. As a response to thgis need for balance, during the last decades, community-based ecoutourism, with advice from amacayacu NNP, has become a strategy towards sustainability.