RÃÂo Jacaguas is a river shared between the municipalities of Ponce and Juana DÃÂaz in Puerto Rico. It flows from north to south, draining into the Caribbean Sea east of the city of Ponce. One of the 14 rivers in the municipality of Ponce, it is also the longest, at . The river has a discharge of 37,000 ft<sup>3</sup>/second, making it also the one with the greatest discharge.
Jacaguas has its origin in the municipality of Villalba, Puerto Rico, in the boundary between barrio Vacas and barrio Hato Puerco Arriba, at an altitude of approximately above sea level. It crosses the municipalities of Villalba and Juana DÃÂaz, forming the Guayabal Lake, before approaching the municipality of Ponce where it becomes the boundary between Ponce and Juana DÃÂaz most of its trajectory. From there it empties into the Caribbean Sea.