There are many reasons for the mystery and awe that surround Peru’s Amazon rainforest. During the rainy season, the mouth of the Amazon river can reach 300 miles across. The river averages 28 miles across during that time, and will rise and fall 30 feet throughout the year. Small villages disappear from the map as they are engulfed by the rising tides, and locals build permanent houses on stilts. Legends and folklore tell of giant snakes, rare animal and plant species, and even human tribes untouched by time and modern culture. Just two years ago, a lost tribe was spotted in the rainforest along the border between Peru and Brazil. When confronted with the sight of a research plane, they pulled out arrows to defend themselves from intruders. Very few tourists ever get to see this fascinating part of Peru, but with boat tours and small lodges, the options are growing. And although there can be dangers in any area as untouched as the Amazon, experienced guides can ensure you enjoy the incredible sights and experiences safely. Read “Amazon: The Lost World” from National Geographic’s site for a first hand look at this remarkable part of Peru.