Tourists view the Iguazu waterfalls from the Brazilian side
Tourists view the Iguazu waterfalls from a catwalk on the Brazilian side, across the border from Argentina, in Foz do Iguacu February 14, 2010. The falls, which boast the greatest annual flow of any waterfall in the world, are fuller than usual this summer due to heavy rainfall in the basin. REUTERS/Jorge Adorno (BRAZIL - Tags: ENVIRONMENT TRAVEL)