It is quite possible to enjoy Iguazu Falls without taking any organised tours but some experiences are only available to groups or by paying an operator. Here are a few options.
The Challenge Range is located near the falls on the Brazxilian side. This offers a variety of activities such as rappel, rafting, tree climbing and Tyrolese. There are different levels of difficulty and it is accessible to all ages.
The Poco Preto trail tour (Tel: 3529 9626) follows a 9 kilometre trail on the Brazilian side from the main road to the river. You can do it on foot, by bicycle or wagon. It is conducted by bilingual guides who give you an appreciation of the flora and fauna along the trail. You then make a visit to the Lagoa Poco Preto and the bird observatory. At the river there is the option to go for a kayak ride or to head for the ourist centre by powerboat. There are other tours in this general area including the Linha Martins tour, the Macuco safari tour, and the Bananeiras trail tour.
Helicopter rides are available from the Brazilian side but they have now been banned in Argentina because they disturb the wildlife in the national park. Take this into account before you travel.
On the Argentine side there are three alternatives (Tel: 421 696). The first is a thrilling 12 minute ride by speedboat through the Devil’s throat canyon and under the San Martin waterfall. The trip departs every 20 minutes from the dock in front of San Martin Island. To reach this point there are 100 metres of stairs so you need a certain level of fitness. You will get wet during this ride so you need a plastic bag to keep your personal belongings dry. There is no way to protect yourself!
The second trip is called the Great Adventure and adds an eight kilometre long jungle drive in a 4WD vehicle on the Yacaratia trail to the speedboat ride. This trip takes approximately one hour and tours depart hourly from the visitor’s centre. A similar warning about protecting your belongings is needed and pregnant women are not permitted on this trip.
The third option is something much more sedate. It is called the Ecological Tour and starts at the Devil’s throat station. You float for about three kilometres on a rubber boat through the upper Iguazu’s delta observing the flora and fauna as you slowly travel downstream. The tour departs every 15 minutes and takes about 30 minutes.