The article explores the history of swimming in the Río de la Plata, particularly in Buenos Aires, during the 1970s. Back then, the coastline extended to what is now the busy central avenues of Paseo Colón and Alem. During the hot summer months, the river became a necessary escape, and families eagerly awaited the annual blessing of the waters conducted by Dominican fathers each December 8th. This event initiated the swimming season, allowing residents to enjoy the refreshing waters of the river after waiting for the ceremonial blessings.

Swimming in the Río de la Plata had an informal set of rules, where daytimes were generally reserved for families while commercial individuals took the waters at night after their work was done. This practice highlights the community's need to reconcile social norms and traditional family structures, as well as address the challenges presented by urban density and a hot climate. The custom was also a response to the lifestyle of the time, shaped by both social needs and religious ceremonies.

Moreover, the piece hints at the authority figures of the period, such as Governor Juan José de Vertiz, who enforced regulations to prevent immoral behaviors by the river. These efforts underline how swimming was not only a public leisure activity but also a reflection of the socio-political landscape of Buenos Aires, driving home the point that even recreational activities were closely monitored in relation to moral conduct. This rich history of swimming practices by the Río de la Plata illustrates a fascinating intersection of culture, religion, and community organization.