Large-scale protests are planned for Sunday 31 July in major cities across Brazil, including: Rio de Janeiro, São Paulo and Belo Horizonte.
In Rio de Janeiro the focal point of the protests will be Copacabana. In São Paulo it will be the area around Avenida Paulista. In Belo Horizonte it will be Praça da Liberdade. Other areas may also be affected.
Roads and public transport are likely to be disrupted. Avoid large gatherings, monitor local media and follow the guidance of local authorities.
https://www.gov.uk/foreign-travel-advice/brazil