Have you thought about doing a River Tour through the Triple Frontier? Take the Encontro das Águas tour, an exciting tour through the Iguaçu and Paraná rivers.
Now it is possible to make change in the Reception Center of Visitors (CRV) of Itaipu.
Don't know all the free tours in Foz do Iguaçu yet? So look at this article!
Parachuting is a radical adventure option in Foz do Iguaçu
See here 04 free travel tips in Foz do Iguaçu to save money on your trip!