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Just outside the town is the famous Boca do Inferno in which the sea on rougher days hammers into the rock and creates a booming noise and a spectacular spray thus creating its name which in English means "mouth of hell". The English occultist Aleister Crowley faked his death there in 1930.
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Modern red-coloured museum devoted entirely to the works of Portuguese-born artist Paula Rego and her husband. The museum's large collection is rotated every few months following different themes.
One of the most outstanding palaces is the Palácio de Conde de Castro Guimarães that is open to the public and exhibits its own grand private collection that includes over 25,000 books and such rarities as an illustrated book by Duarte Galvão (1455-1517).
Museu do Mar
On a much more modest scale is the Museu do Mar that depicts the story of Cascais and its fishing history.
Farol Museu de Santa Marta
A museum dedicated to the lighthouses of the Cascais coast, situated on the site of an old fort next to a working lighthouse. You can get up close to some of the lights used.
Farol Museu de Santa Marta
A museum dedicated to the lighthouses of the Cascais coast, situated on the site of an old fort next to a working lighthouse. You can get up close to some of the lights used.
Câmara Municipal de Cascais
An attractive building with an excellent, small museum on the ground floor that provides a good introduction to the town.