Barretos is a cattle town in the interior of São Paulo state, known throughout Brazil for the Festa do Peão de Boiadeiro — one of the largest rodeo festivals in the world. Every August, the town's population roughly doubles as hundreds of thousands of visitors arrive for ten days of bull riding, country music, and what amounts to a giant open-air party.
Outside the rodeo season, Barretos is a quiet agricultural centre in the flat, hot cerrado landscape. The Parque do Peão has a permanent Museu do Peão de Boiadeiro covering cowboy culture, and the town's economy still revolves around cattle ranching. Unless you are coming for the Festa do Peão, there is not much reason to stop — but if you are, it is an unforgettable glimpse of Brazil's interior cowboy culture.