Where there is a town in Portugal there is likely a castle up on the hill and Sesimbra is no different. We visited in March and perhaps because it was the slow season there was no fee. There is a parking lot for cars and busses and a building that seems to have a cafeteria. There are terrific views of the are in all directions and the town of Sesimbra is one of them. There are a few explanatory signs throughout.
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