During the rainy season, half of them are submerged, thus forming the floating forest, a boundless area of creeks and channels awaiting discovery. The compact vegetation serves as a shelter for diverse birds, butterflies, iguanas, rodents, monkeys and snakes. With its impressive black waters, it has an extremely abundant aquatic life with several species of fish, like the famous Pirarucu, the Tucunaré; piranhas, as well as crocodiles, dolphins and manatees !