In this precise place, but almost a thousand years ago, aborigines inhabited these coasts, as they did along the Uruguay River in extensive migrations from the south. They lived on hunting and fishing products but they may also plant pumpkins and other fast-growing plants. Fishes, snails, bibalvos and farm animals and fruit picking was their main livelihood in a nomadic life, without spending much time in one place.

They had a somewhat elaborate but fragile pottery, often painted and drawn using sharp bones and thorns, as well as the nails of their own hands. The women were the potters, while the men were hunting and defending the territory.

Several archaeological sites throughout this area indicate the profusion of sites inhabited by these natives that around 1500 AD were influenced by the Tupi-Guarani Indians with whom they were not friendly.

Between groups they practiced some commerce and also they did it with the European Jesuits, although they did not fold too much to the idea to settle down in missions.

On this long beach, pieces of pottery and stone arrowheads have been found.