Join一 科学与技术 upcoming events being held in Santo Antônio do Caiuá. Santo Antônio do Caiuá is a charming city located in the northwest of the state of Paraná, Brazil, known for its rural landscapes, rich history, and cultural events such as the Festa de Nossa Senhora do Rosário and the Festa do Peão boasting traditional food, music, and cowboy demonstrations.