One of the grand spectacles of nature is found at the Triple Frontier of Brazil, Argentina and Paraguay : Iguassu Falls. Its dimensions and magical rainforest setting make this “big water” (translation from guarani : Igua –açu) one of the most beautiful and overpowering waterfalls in the world.

The falls have their origin in a geological fissure created by volcanic activity more than 100 million years ago. The wide Iguaçu river suddenly drops into a giant theatre of and the waters are then forced into a narrow channel. Water volume can vary greatly and so can the number of falls. The main fall is aptly named the Devil’s Throat.

The area became a National Park in 1939 and protects 185 thousand hectares of rainforest and water. A major investment in park infrastructure in 2001 now assures visitors a wide range of options for leisure, ecotourism and adventure. The power of the falls can be appreciated through trails, observation towers and outlooks. The mystery and variety of the vast surrounding rainforest, with many birds and butterflies can be seen on hikes, bike and boat tours. The more adventurous can do tree rope courses, rappel with the falls as a backdrop, go on a wild boat ride right up the Devil’s Throat or down to right before the drop.

Close by is the well run Bird Park, where you can have close encounters with Brazil’s birdlife in open aviaries. Well worth a visit is the dam of Itaipu, one of the engineering wonders of the world, which has several interesting programs for visitors. A cruise on the Paraná river to learn about the ecosystem and the lifework of scientist Moises Bertoni is also an excellent option.