Parque Nacional del Iguazù Sports & Outdoors

If you find walking boring you can choose some of these options offered from a company inside the park but better prebook in advance anywhere in town. All the companies in the bus terminal have offers like these:

-gran aventura 120$, 8km ride in the jungle with 4x4 vehicle through the Yacaratta trail. Navigation through the lower Iguazu river with 2kms on rapids. The speedboats will break into the Devil’s Throat canyon and into the most important argentine ones
-aventura nautical 60$, Starts in front of San Martin island and breaks into Devil’s Throat canyon and under the San Martin waterfall
-paseo ecologico 30$,
-pasaporte verde(paseo ecologico y gran aventura 145$),
-full day(paseo ecologico y aventura nautical 85$)

Equipment: protected bags for your cameras

I have talked about these activities before; there are some possibilities to sail the Iguazú river: the "Great Adventure", the "Nautical Adventure" and the trip to San Martin Island. The speedboats sail the rapids and lead you to the waterfalls; another option is sailing the upper Iguazú river in rowboats.

He hablado antes de estas actividades; hay varias posibilidades de navegar el río Iguazú: la "Gran Aventura", la "Aventura Náutica" y el viaje a la isla San Martín. Los botes a motor navegan por los rápidos y llegan hasta las cataratas; otra opción es navegar el Iguazú superior en botes de remos.

Equipment: A plastic bag to protect the camera and waterproof mascara.

Una bolsa de nylon para proteger la cámara y máscara para pestañas a prueba de agua.

The visit to the National Park involves loooooong walkings along the trails and gangways. The trails go through the jungle, and the gangways (upper and lower circuits) lead to the waterfalls.
Each trail and circuit has its own signal, with its lenght, and difficulty degree.

La visita al Parque Nacional implica laaaargas caminatas a lo largo de los senderos y pasarelas. Los senderos atraviesan la jungla, y las pasarelas (circuitos superior e inferior) conducen a las cataratas.
Cada camino tiene su señalización correspondiente, con su longitud, tiempo estimado y grado de dificultad.

Equipment: Good hiking shoes and enthusiasm.

Buen calzado deportivo y entusiasmo.

The Macuco company offers exhilarating boat safaris that will not only get you soaked, but will give you quite an adrenaline rush as the daredevil driver speeds up the river right toward the Devil's Throat.