Situated close to the sea and traditionally a fishing village, Cascais enjoyed an important period of development in the 14th century, when it was a major stopping off point for boats on their way to Lisbon, turning it into a very busy port at that time. Cascais also began to attract the attention of the curious, who came here to enjoy a stroll by the seaside, and access to the town was greatly facilitated by the opening of the railway line between Pedrouços and Cascais in 1889. Nowadays, Cascais is a very lively and cosmopolitan town that still preserves a great deal of its earlier aristocratic atmosphere. It was, however, in the second half of the 19th century, when sea bathing became a popular activity, that Cascais was given the impetus that transformed it into a very fashionable summer resort. The great driving force behind this transformation was the king of Portugal, Dom Luís I, who, in 1870, converted the Fortaleza da Cidadela into the summer residence of the Portuguese monarch
