 Its major tributary is the Erebato.Both rivers emerge from the Jaua-Sarisariñama Plateau, more than above sea level).The Caura is navigable up to Pará Falls (Salto Pará), an impressive waterfall formed by two branches of the river with an island in the middle 
Both branches have some rapids and join in one of the most remarkable waterfalls in the Orinoco basin, not because of its height, but because of the impressive flow of water.