Rodovia Oswaldo Cruz is a state highway located in the state of São Paulo in southeastern Brazil. The road features extremely steep sections (1st gear all the way) and a few sharp hairpin turns.
The road is 91 km (56 mi) long and connects the cities of Taubaté (in the Paraíba Valley), and Ubatuba (on the north coast of São Paulo). It runs within the Parque Estadual da Serra do Mar.
Rodovia Oswaldo Cruz was completed in 1976. It’s also called SP-125. Rodovia Oswaldo Cruz has very sharp curves downhill. To be driven it requires a good condition of the vehicles, good brakes, good traction and grip of the car.
Drive at moderate speed. You’re not on a race. The weather on this zone is harsh and highly unpredictable: any time of the day can be under heavy fog.