The prizewinner, their guest and two children will spend two nights each at two of Portugal’s loveliest hotels in the lovely seaside town of Cascais. This beautiful part of Portugal’s coast has long been a sought-after summer holiday spot – in the late 19th century, the Portuguese royal family would summer here, and eager sun seekers have been drawn to the area ever since. AdvertisementSheraton Cascais ResortNext, the prizewinner will check into a deluxe suite at Sheraton Cascais Resort for two nights, with breakfast included. TAP Air Portugal has daily departures to Lisbon from London Heathrow, London Gatwick and Manchester. Cascais was established as a seaside resort in 1870 when which king of Portugal visited the town?