The beach of Ipanema is known for its elegant development and its social life. Two mountains called the Dois Irmãos (Two Brothers) rise at the western end of the beach, which is divided into segments by marks known as postos (lifeguard towers). Beer is sold everywhere, along with the traditional cachaça. There are always circles of people playing football, volleyball, and footvolley, a locally invented sport that is a combination of volleyball and football.