Praia do Cassino
Praia do Cassino is the southernmost beach of the Brazilian coast, on the South Atlantic Ocean, in the state of Rio Grande do Sul. It is thought to be the longest uninterrupted sandy seashore in the world, with various sources measuring it from to, stretching from the Molhes at the entrance of the Rio Grande seaport in the north to the mouth of the Chuí Stream, on the border with Uruguay, in the south.
On Nov. 12, 1966, during a total solar eclipse visible in Praia do Cassino, NASA scientists and U.S. Army have launched several rockets to studied upper atmosphere
