​​The same waters that are passing through Iguassu Falls, making the borders between Argentina, Brazil and Paraguay 23 km downstream.  The Iguassu river ends into the Parana River that is the second-largest river in South America, just behind the Amazon River. 
Each of these countries has built a stone and cement obelisk on its territory painted with the colors of their respective flags. From this landmark, one has a panoramic view of each of the three countries.

The site in Brazil is run by a private company and they charge people to visit. There are facilities with a short local folk show focusing South American. The Building at the site looks like the Jesuit Missions run by the Jesuits, there is some information about the Jesuits and Spaniards, there is also a restaurant Cabeza the Vaca, kiosks with food and drinks and a gift shop. Limited buses from the site to Foz city in Brazil. Most of the people visit it during the evening. Tuesday to Sunday 2:00 p.m. to 10:00 p.m., admission US $9.00 

The site in Argentina is run by the Argentinean government and is free of charge. There is a short water show with lights. At the site, people find kiosks selling handcrafts, beverage. Street vendors selling handicrafts. There is also a hippie market with handcrafts. This place is only busy in the evening. During the day people are at the falls. The site is walking distance from Puerto Iguazu, downtown. 

Optional tours outside of the park on the way back to the hotel

Bird Park Brazil walk-in-through 
The Park was designed and built by Dennis and Anna Croukamp. He has been a bird lover since childhood, she, a veterinarian, the two from Namibia, southwest Africa. In their incredible adventure, the couple arrived in Brazil without even speaking Portuguese. The park was opened on October 7, 1994, and it is getting bigger and bigger.  Each year more than 700 thousand people visit the Bird Park in Portuguese Parque das Aves. The Park is located in an area of ​​more than 16 hectares of forest. Strategically located between the Iguaçu River and the highway that leads to the Falls.
Bird Park serves as a hospital and refuge for animals rescued from abuse and trafficking.
It is the largest bird park in Latin America, the largest macaw nursery in South America, the largest aviary for birds in the Americas, it has the largest groups of macaw jacutingas in the world and the largest set of parrots (the family of parrots, macaws, jandaias and parakeets) on display in Brazil.
The Park currently has one of the most complete sets on the planet, with species from all continents: flamingos from Africa, cranes from Asia and cassowaries from New Guinea.
World reference for many species of toucans, one of the most popular Brazilian tropical birds.
At floresta aviary, one find birds of the Atlantic Forest. At Pantanal aviary, birds adapted to the aquatic environment. At macaws aviary, one can have the experience of admiring the low-flying macaws. 
One can buy the ticket at the site. 
​Bird in the picture: Sayaca Tanager