Venture into Brazil's Mata Atlântica (Atlantic Forest) on a half-day eco-tour from São Paulo. Traveling to Cantareira State Park by private vehicle, you'll catch a breath of fresh air in the dense forest landscape that surrounds the city – declared a São Paulo City Green Belt Biosphere Reserve by UNESCO! As you hike the trails with a local guide, enjoy plenty of bird-watching opportunities along with breathtaking views of the sprawling city below.