Cascais is beach town in Greater Lisbon, Estremadura, Portugal, at the end of the mouth of the River Tagus as it meets the ocean, with spectacular beaches to be found on its Atlantic shorelines. 

The combination of maritime leisurely charm, strategic position and location close to Lisbon made it a favourite residence of the Portuguese royal family and several other nobles and one of Portugal's first holiday resorts.

Cascais is dominated by the bay and the imposing Cidadela fort, and the historic centre is brimming with architectural treasures of a religious, military and civil nature. Likewise, the museums of the Sea, Casa das Histórias de Paula Rego, and the Municipal Museum Condes de Castro Guimarães are also must-see attractions.

- Wikivoyage