Ciudad Guayana is a city in Bolívar State, Venezuela. It stretches 40 kilometers along the south bank of the Orinoco river, at the point where it is joined by its main tributary, the Caroní River. The Caroní flows through the city from south to north, dividing it into its predominant halves — the old town of San Félix, to the east, and the newer area of Puerto Ordaz, to the west.