1 Iguazu boasts the second highest debit of water of any falls in the world – after its great rival, Niagara.
2 A staggering 61,660 cu ft of water drops over the edge every second, causing a deafening roar and a gigantic plume of mist (that can form a cloud up to 500 feet high)
3 The highest recorded flow of water at the Falls was 452,000 cu ft/s, more than seven times the average.
4 The force of the water gnaws away at the basalt rim at a rate of one tenth of an inch annually.
5 The highest fall registers over 82m: it is also the most theatrical of the 275 separate falls, the Garganta del Diablo (the Devil´s Throat), a crescent-shaped demon of foaming waters. It can be reached by a 1000-yard long trail and walkway that crosses shallow waters.
6 Thousands of daredevil swallows swoop to and from the nests they crazily (or cleverly) built right at the water's edge.
7 In 1978 (embarrassingly during the World Cup when Argentine tourism was being showcased) and in 2006 the Falls dried up completely. The flow varies throughout the year, as does the color. After heavy rains the water turns brick-red with sediment, otherwise the Falls look pure white.
8 The Argentine and Brazilian national parks were awarded the status of UNESCO World Heritage Sites in 1984 and 1987, respectively.
9 In fact Iguazu lies at the junction of three countries, Argentina, Brazil and Paraguay. A huge hydroelectric dam, farther upstream, supplies Brazil and Paraguay with a large percentage of their energy needs.
10 There are several flights daily between the Argentine and Brazilian airports to a number of destinations in each respective country.