We explore a small tributary of the Ucayali in search of piranha, which are very common in the slower-moving water. With luck, we may catch red-breasted, white or black piranha, and feast on our catch this evening. We look for animals including primates, sloths and an enormous variety of birds. La Amatista continues upriver to the Pacaya-Samiria Reserve. This afternoon, an excursion into this largest wetland reserve in the world provides the opportunity to see primates, including monk sakis, red howler, saddle-backed tamarin and squirrel monkeys. We explore Caro Lake, connected to the river by way of a very small stream, where we may find flocks of greater ani, often seen following monkeys in search of insects disturbed by the monkeys’ foraging. We enjoy a nighttime boat excursion for a chance to find caimans, capybaras, common potoos, frogs and other nocturnal wildlife. (B,L,D)