226km of immense sandy beaches, on a tremendous sand plain, in an inhospitable and climaterically unstable place of enormous contrasts. 54 hours of maximum time to cover the stretch between sand and sea, in a corridor that can sometimes seem endless and psychologically exhausting. In a land that once said of the many, everything can be very intense at the same time. It is a place of climatic extremes and with that associated dangers.

The Extreme South Ultramarathon, is a self-sufficient race among the various bases set up by the organization, but which exposes, year after year, the fragilities of the human being when trying to control the forces of mother nature. Therefore, a real self-sufficiency capability for the entire race, and not just for the distances between bases, is highly recommended.

The longest beach in the world, in the extreme south of Brazil, which connects Barra do Chui, in the municipality of Santa Vitória to Cassino, in Rio Grande, is no ordinary beach. It is a world of stories, struggles, difficulties, overcoming, but also of knowledge, avoidance, and much transformation. We are absolutely sure that you will never be the same after facing this horizontal abyss.

Welcome to the Extremo Sul Ultramarathon.