close-up of splashing waterfall in a narrow ravine with rainbow, iguazu falls, argentina

adventure argentina beautiful brazil cascade closeup elements environment falls famous flow flowing water gorge green iguazu jungle landscape majestic motion national landmark natural outdoors power nature powerful rainbow rainforest ravine river scenery south america spectacular splash spray tourism travel destinations trees tropical climate unesco vegetation view waterfall wet whitewater wild wonder world heritage site close-up splashing narrow white tumbling qater left right roxks rocks cliffs