São Sebastião

São Francisco Archaeological Site, in São Sebastião: ruins of a 19th-century slave plantation in the Atlantic Forest, with guided visits, a trail and LiDAR findings.

At 260 meters above sea level, shrouded by the dense silence of the Atlantic Forest and with a privileged view of the São Sebastião Channel and the distant silhouette of Ilhabela, the São Francisco Archaeological Site preserves one of the most disturbing and fascinating testimonies of the history of the São Paulo coast. There, among roots, mosses and stones covered by time, the ruins of an imposing 19th-century slave plantation emerge — a clandestine outpost where hundreds of enslaved Africans landed in the shadows, far from the eyes of the Empire.

Discovered in 1991 and expanded in 2007 with an adjacent area of more than 1.2 million square meters — potentially one of the largest archaeological sites in Brazil —, the complex reveals three levels that narrate the brutal hierarchy of the time: the ceremonial courtyard, where the newly arrived were received with orders and silence; the imposing chapel, built more to assert power than to exercise faith, with a preserved baptismal font, aqueduct and oratory; and the Casa Grande, surprisingly discreet, which supports the theory of a strategic commercial post from which spotting ships at sea was a matter of survival for the business.

Recent surveys using LIDAR and LaserScan technology, in partnership between the São Sebastião City Hall, FUNDASS and specialized companies, revealed new structures not yet catalogued — slave quarters, original roads, bridges, ovens and aqueducts that rewrite the magnitude of this find. The access trail is 1 to 2 km inside the Serra do Mar State Park (1h to 1h30).

Practical Information

Guiding: Mandatory (accredited guide)

Difficulty: Easy to moderate

Route: 1 to 2 km (trail) | 3 km round trip (full access)

Duration: 1h to 2h30

Booking: Directly with an accredited monitor

Hours: 8am to 5pm (Mon to Fri)

Ticket: Check with monitor > You can access the list by clicking here

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