São José da Ponta Grossa Fortress is a historic defensive fortification located on Santa Catarina Island near Florianópolis, situated between the beaches of Forte and Jurerê. Constructed between 1740 and 1744, the fortress served as a key vertex of Brigadier José da Silva Paes' defensive triangle protecting the North Bay entrance. Equipped with three cannon batteries and 31 artillery pieces, the fortress strategically controlled maritime traffic along the Brazilian coast, positioned midway between Rio de Janeiro and colonial settlements to the south. In 1765, the São Caetano Battery was added to enhance coastal defense. Declared a National Historical and Artistic Heritage in 1938, the fortress underwent restoration in the 1989 by the Federal University of Santa Catarina, which continues its maintenance today.