Iguazú Falls: Mist and Golden Light Above the Devil's Throat

Iguazú Falls occupies the Argentina-Brazil border at 25.7°S, spreading across a 2.7 km horseshoe of 275 waterfalls in subtropical forest. Golden hour lasts approximately 28 minutes. The falls face generally north on the Argentine side: from the Lower Circuit walkways, you look north-northeast directly into the primary cascade curtains. The Devil's Throat (Garganta del Diablo), the main cataract at 82 m high and 150 m wide, is reached by a 1 km elevated walkway; from the viewing platform the composition faces north-northwest directly into the throat, with the mist column rising overhead. Morning light enters from the east and illuminates the mist column from the side. Rainbows form in the mist column when the sun angle and water spray align, typically between 9 AM and noon.