Laguna de los Coipos is a historic lagoon located within the Reserva Ecológica Costanera Sur in the Autonomous City of Buenos Aires. This rectangular lagoon, situated parallel to Avenidas Intendente Giralt and Achával Rodríguez, is a key component of an urban protected area and a Ramsar site of international importance for wetlands. After being completely dry since 2005, a major hydraulic restoration project was undertaken to reconnect it to the Río de la Plata. Water is pumped from the Viamonte Channel into the dredged lagoon bed, circulating through the system before draining back to the river. This engineered flow is designed to restore the aquatic ecosystem, naturally reintroducing fish eggs and juvenile specimens from the river to reestablish a functional fishery. The lagoon represents a peaceful natural escape within the city, offering anglers a unique urban fishing experience focused on biodiversity and conservation.