Laguna Chascomús is a legendary fishing destination situated on the eastern edge of the city of Chascomús in Buenos Aires Province, Argentina. Covering approximately 3,000 hectares (30 km²), this shallow pampa lake sits at just 8 meters above sea level within the vast Llanura Pampeana, a region defined by flat, gently rolling plains and slow, meandering waterways. The lagoon is part of the "Las Encadenadas" lake system within the Río Salado basin, fed by the arroyos Vitel, Valdés, San Felipe, and Brown, and draining through a short canal into Laguna Adela (also known as Manantiales). Its name, derived from the native tongue, translates roughly to "salty, very salty water," hinting at the slightly brackish character typical of pampa lakes. For generations, Laguna Chascomús has drawn thousands of anglers every weekend, earning a reputation as one of the finest fishing lagoons in all of Buenos Aires Province.