Originally a fishing village, Cascais became a popular seaside resort for Portuguese royalty and nobility in the 19th century. This cosmopolitan town is a very popular destination on hot summer days when thousands of people visit the beaches.
Estoril is only 2km east of central Cascais and it is home to Europe's largest casino. Of the twin resort towns, Estoril tends to be more upmarket and boring while Cascais is more lively with bars and pubs and surf beaches nearby.
Rua Visconde da Luz, 2750 Cascais
Tel 21 486 8204
Arcadas do Parque, 2765 Estoril
Tel 21 466 3813
The train is the best way to travel between Lisbon and Cascais with frequent trains from Lisbon's Estação Cais do Sodre. The 25-minute trip costs €1.70.
Buses connect towns in the region and are the best way to get to and from Sintra. Bus 417 runs from Cascais to Sintra and bus 418 runs to Sintra from Estoril.
The main attraction here is the 'Mouth of Hell', a blowhole 2km west of Cascais, which can be spectacular during stormy weather.
This museum is housed in a beautiful palace looking over the sea and it features archaeological exhibits, paintings and Indo-Portuguese ceramics.
Avenida Rei Humberto II de Itália, 2750 Cascais
Tel 21 482 5407
Open Tue-Sun 11am-4pm