Which river flows through Caracas before joining the Tuy River?

The Guaire River flows through Caracas before joining the Tuy River in Venezuela.

The Guaire is a 72-kilometre river and the principal river associated with Caracas. It begins at Las Adjuntas, where the San Pedro and Macarao rivers meet, then crosses the capital and continues eastward through Miranda State. Its mouth is on the Tuy River, east of Santa Teresa del Tuy.

The river is a tributary of the Tuy, not a rival name for it. That distinction explains the wording of the question: the Guaire passes through Caracas, while the larger Tuy receives it farther downstream. The Tuy ultimately continues toward the Caribbean Sea.

The Guaire is also known for its serious pollution problems and has long functioned partly as a wastewater channel. During Venezuela’s 2017 protests, some demonstrators jumped into the river while fleeing tear gas, bringing wider international attention to Caracas’s heavily polluted waterway. Rivers such as Chile’s Mapocho and Peru’s Rímac are plausible geographic distractors, but neither flows through Caracas or joins the Tuy.