There are two options for the Rafting in Iguassu Falls, Brazil:
FIRST OPTION: it lasts 3 hours and one must COMBINE this tour with the Macuco Safari and boat trip. The rapids vary from 1.5 to 3.5 level, depending on the water flow. When the water level is good, there are about 950 yards divided into 3 sets of rapids plus 2 km of paddling downstream. During the tour, one can also be swimming in the Iguassu River.
SECOND OPTION: There is a chance also to buy the ticket only for the white water rafting. In this case the tour it will last around 95 minutes including travel time to the end of the trail.
How to get to this option? As you arrive at the first lockout (the main one at the beginning of the trail in front of Belmond hotel), walk to the right for 30 meters, they have a ticket office there.