Samborombón Bay is located at the mouth of the Río de la Plata, stretching from Punta Piedras in the north to Punta Rasa in the south, where Cape San Antonio begins.
The location of Samborombón Bay is along the Río de la Plata's entrance, stretching from Punta Piedras in the north to Punta Rasa in the south, and ending at Cape San Antonio.