Heading north from Foz along Avenida do Brasil (which turns into Avenida de Montevideu), you’ll come across the Castelo do Queijo, or the Cheese Castle, nestled into the rocky shore. The fort was coined the ‘Cheese Castle’ because of the rocks it was built upon, which look like pieces of cheese. The official name is the Forte de São Francisco Xavier.
The fort takes a pounding from the sea. It’s a great place to feel saltwater spraying across your face. The Castelo do Queijo marks the end of Avenida da Boavista. There’s a plaque embedded in the cement commemorating the Grande Prémio do Porto (Circuito da Boavista) street races.