Located in the Pedra Branca State Park, Pedra do Telégrafo (elevation of 350 metres) is at the top of Guaratiba Hill. Take a walk along the beach to the starting point of the trail. The ascent begins at Guaratiba Beach and it takes about an hour to reach the summit.

There are several viewpoints along the way, with the best known being a large, sharp rock called Pedra da Bigorna. From the summit, marvel at the views of the Restinga da Marambaia sandbank, the wild beaches of Rio, Pedra do Pontal, and Grumari Beach. After the walk, relax on the beaches of Grumari or Prainha.