The park was created in 1934, inscribed by UNESCO as a World Heritage Site in 1984, and protects more than 67,000 hectares of Paraná rainforest. The Administración de Parques Nacionales (APN) runs three walkway circuits on the Argentine side: the Paseo Superior, 1,850 m one way with no stairs, along the top of the falls; the Paseo Inferior, 1,750 m with stairs, close enough to feel the spray; and the 1,100 m walkway over the upper river to the Garganta del Diablo, reached by the Tren Ecológico de la Selva. The 7 km Sendero Macuco leads into the forest.
The park opens daily from 8:00 to 18:00, admits visitors until 16:00 and runs its last train to the Garganta at 15:30, so every session here is a daylight session. Commercial photography and filming are regulated by APN Resolution HD 297/2018, which requires productions meant for publication to apply at least 20 working days ahead and pay a daily fee, with a 25% surcharge in World Heritage parks. Under APN Resolution D 9/2021, recreational drone flights are banned in national parks and any other flight needs the prior express authorisation of the APN.
In town, the Hito Tres Fronteras looks over the confluence toward Brazil and Paraguay. Most clients spend two or three nights: couples, honeymooners, families on a long Argentina trip and proposals planned for the noisiest place they will ever say yes.
