The rock was originally used by the Brazilian Armed Forces during World War II as a strategic observation post to monitor the coast for enemy submarines.
The name 'Pedra do Telégrafo' refers to the historical use of the peak for telegraphic communication.
The famous 'cliff-hanging' photo is achieved by shooting from a low angle to hide the ground located just a few feet beneath the rock.
The trail is part of the extensive Pedra Branca State Park, which is one of the largest urban forests in the world.
Local flora includes species typical of the Atlantic Forest biome, such as bromeliads and various tropical hardwoods.
Trilha Pedra do Telégrafo is a popular hiking trail located within the Pedra Branca State Park in the Barra de Guaratiba neighborhood of Rio de Janeiro. The destination is famous for a specific rock formation that creates an optical illusion, making hikers appear as if they are dangling over a massive precipice above the Atlantic Ocean. The hike typically takes between 30 to 50 minutes to complete from the trailhead at Praia Grande. The trail is considered moderate, involving a steady incline through dense Atlantic Forest vegetation. At the summit, hikers reach an elevation of approximately 354 meters. The viewpoint offers panoramic vistas of the Restinga da Marambaia, Guaratiba Bay, and the surrounding beaches. The trail surface consists largely of dirt paths, rocks, and wooden stairs, which can become slippery after rain. It is a highly frequented spot for social media photography, often resulting in long queues at the summit.
The large, flat rock extension overlooking the ocean at the summit.
Arrive well before sunrise to avoid waiting in line for several hours for a photo.
Carry at least 1.5 liters of water per person, as there are no amenities or sources of hydration on the trail.
Bring a backpack to keep your hands free for balancing on the uneven terrain.
Attempting the hike during or immediately after heavy rain due to mud and slippery rocks; arriving at midday on weekends.
Wear sturdy hiking footwear with good grip; do not leave trash on the trail; respect the long queues for photos.
