The fortress was constructed following the designs of Italian military engineer Giovanni Battista Antonelli.
It was effectively abandoned and later repurposed multiple times throughout the 19th and 20th centuries, including use as a quarantine station.
The structure is built in the 'trace italienne' or star-fort style, which was revolutionary for its ability to withstand cannon fire.
Evidence of the early construction techniques, specifically the use of whale oil in the masonry mortar, remains visible in the preserved wall sections.
The fortress played a significant role during the 1822 independence process and the Revolta da Armada in 1893.
The Fortress of Santo Amaro da Barra Grande, constructed in 1584, is a star-shaped colonial military fortification guarding the entrance to the port of Santos. It was built during the Iberian Union to defend the region against potential invaders, including corsairs and Dutch forces. The structure features thick stone walls built using a traditional mix of whale oil and lime. Visitors can explore the internal galleries, original cannons, and military barracks that have been converted into exhibition spaces. The museum displays artifacts and historical documentation regarding the defense of the Brazilian coast. It occupies a strategic position on the left bank of the entrance to the Santos channel, directly opposite the city of Santos. The site provides panoramic views of the Atlantic Ocean and the busy port traffic of the channel.
The main ramparts overlooking the channel, which offer clear views of the Santos port and passing cargo ships.
Wear comfortable, non-slip footwear as the historic stone pathways and staircases can be uneven.
Carry sun protection and hydration, as the site is highly exposed to the elements with limited shade.
Consider using the local boat taxi service from the Santos side to reach the Santa Cruz dos Navegantes neighborhood efficiently.
Attempting to reach the fortress by land through dense trails without a local guide or proper navigation.
Typically closed on Mondays.
Respect the restricted access areas; do not climb on the historical walls or cannons.
