Tourists stand on a walkway extending from Iguacu River to observe Iguacu waterfalls in Foz do Iguacu...
Tourists stand on a walkway extending from the Brazilian bank of the Iguacu River to observe part of the Iguacu waterfalls in southern Brazilian city Foz do Iguacu March 22, 2008. REUTERS/Paulo Whitaker (BRAZIL)