The Chuí, or Chuy, Stream, is a short stream on the Brazil–Uruguay border that is Brazil's southernmost point.

Santa Vitória do Palmar is a Brazilian city and municipality. It is the southernmost municipality in Brazil, located in the state of Rio Grande do Sul. To the west of the municipality is the Lagoa Mirim and beyond that is Uruguay; to the east and southeast lies the Atlantic Ocean, and to the north is the city of Rio Grande. To the south, it borders the municipality of Chuí and Uruguay.