Aguas Abiertas San Pedro — Club Náutico

The current pushes against your hip as you navigate the wide, silt-heavy expanse of the Paraná, a flow that has carried the history of this region for centuries. To your left, the imposing barrancas rise sharply from the water line, their jagged profiles serving as a constant navigational reference against the lush, low-lying islands of the delta. Just beyond the breaking point of the water’s surface, the silhouette of the ARA Irigoyen stands as a silent sentinel, a former US Navy vessel now permanently moored. It is here, amidst these shifting currents and maritime relics, that the Aguas Abiertas San Pedro — Club Náutico takes place on November 22, 2026.

Historical currents and local life

Swimming through these waters, one cannot help but trace the paths of those who shaped the Argentine interior. This river was the stage for the 1845 naval blockade, a memory that lingers in the sediment below. The spirit of defiance that characterizes the local heritage is embodied by figures like Juan Facundo Quiroga, who famously risked political exile to board a vessel in this very harbor. The landscape is equally defined by the intellectual legacy of Cecilia Grierson, born at the nearby Santa Lucía station; her early, unconventional efforts to secure suffrage reflect a local culture that has long challenged established boundaries.

As you exit the river, the scent of the city’s signature pastry—the Mallorcan ensaimada—often drifts from the shore. The community’s deep-rooted connection to the Balearic Islands remains a living tradition, celebrated annually in a festival that honors the immigrant families who established the local trade. This race follows closely after a series of regional events, including the Aguas Abiertas San Pedro hosted by the neighboring club in early November. Participants choose between a 3000m and 8000m course, both of which require adaptation to the river’s natural flow rather than a static pool environment. The riverbed itself contains remnants of the ancient Querandí settlements, and it is common for the local museum to display fossils recovered from the very banks you pass during your swim.