The fort is notable for its prominent yellow walls, which contrast with the surrounding architecture, and its strategic position overlooking the Atlantic Ocean.

Today, Fort of São Tiago serves as both a cultural landmark and a popular tourist attraction, offering panoramic views of the sea and the city of Funchal.

The structure is characterized by its robust stone walls and bastions, designed to withstand cannon fire and repel naval assaults.

The fort's design includes multiple watchtowers and ramparts that once provided soldiers with clear views of the harbor and surrounding coastline.

The strategic coastal location of Fort of São Tiago allowed early detection of approaching ships, ensuring its critical role in the island’s defense system.