On the Argentine side, you can literally walk over the very falls.
"The Great Adventure" is an excursion that you cannot miss on your next visit to Puerto Iguazú. Known as the "Baptism of the Waterfalls"; This tour combines the adrenaline of being just meters away from the falls, with a jungle tour in a 4x4 and an inflatable gomon.
Without a doubt, an experience that you will never forget!