Cambralha - is a Brazilian performance group known for their provocative and politically charged works of performance art. Cambralha was founded in 1994 by psychologist students at Pontificia Universidade Catolica do Rio de Janeiro. Shares unusual are the hallmark of the group Cambralha. For example invade a volleyball game, stop the flow of cars in a tunnel, "seeking the light at the end of the tunnel," into the middle of a race horse, tying the building of the federal courts to stop the traffic in the city different points for 30 minutes, and other actions. 2007 Activist Paulo Duarte swam Thams river to end the Iraq war, and justice in the Jean Charles Menezes case.