Forte Defensor Perpetuo sits just above Paraty's historic centre, guarding the curve of the bay rather than hiding deep in the forest. Its position makes it one of the easiest ways to connect the pretty colonial streets with the town's maritime past.
The fort is small, but the walk up, old cannons, and views over the water make it worthwhile. It works best as a short morning or late-afternoon stop before returning to the historic centre for food or a boat trip.