Amazon River - Brazil

at approximately 6,400 km (4,000 miles) the Amazon River is the second longest river in the world, just slightly shorter than the Nile, and the largest river by volume. The Amazon has over 3,000 recognized species of fish and new species are still being discovered. The Amazon Basin is covered by half of the planet’s remaining rainforests. Although a tenth of the world’s estimated 10 million living species live in the Amazon rainforest, jungle tours are more about the boating upriver into the damp, buzzing, oppressive ambiance than actually spotting animals.