From this viewpoint in Presidente Franco you can watch the Iguazú River, which separates Brazil from Argentina, flow into the Paraná right in front of Paraguayan soil. Each country has raised an obelisk painted in its national colors, and all three are visible from one another. It's a short, very photogenic stop, especially at sunset. Keep your expectations in check, though: the Paraguayan side is the simplest of the three, and the makeover announced in 2022, with a tri-national museum and a food court, never materialized.

The Triple Frontier was defined by the course of the Iguazú and Paraná rivers following the boundary agreements of the late 19th century. The Paraguayan landmark marks that meeting point opposite the river mouth. Presidente Franco, the city where it stands, also celebrates the cooking of the mensúes (yerba mate laborers) every winter with the Reviro Festival.