26. The Amazon River
River cruises are undoubtedly an exciting way to explore the planet’s greatest rivers. Mind you, they can be expensive. Using long-distance public ferries can provide you with almost the same experience at a lower cost. In fact, you can cruise the Amazon River from Belem to Manaus on a comparatively inexpensive public riverboat. This six-day voyage will run you less than $49.00 US dollars cabin included.
27. Santa Rosa, Bolivia
Santa Rosa is ensconced in the Bolivians lowlands 100 kilometers north-east of Rurrenabaque. From here you can take boat tours on the Río Yacuma. Along the way, you will see caiman, capybara, hoatzin, pink river dolphin, herons, and numerous other birds as well. Check out the forest for capuchin, howler, and squirrel monkeys. Hike through the local marshes and you might spot anaconda and spoonbills too.