Amidst spectacular and unspoiled rainforest, you will find sight fishing for peacock bass, the jungle’s fiercest predator and arapaima, the largest scaled freshwater fish in the world, reaching lengths of up to 9 feet long. Partnerships between fly fisherman, the local Indian community, and the Brazilian government have been established to protect the indigenous people and the unique jungle fisheries of Rio Marie and Pirarucu through eco-tourism and catch-and-release fly fishing.