Cádiz, a jewel in Spain's crown with over 3,024 hours of sunshine a year, has been crowned Europe's sunniest coastal city yet remains uncharted territory for almost half the British population.

The city of Cadiz, in Andalusia in the south of Spain, is considered the oldest in Europe according to Turismo de Cadiz, the city's tourism board. They say it was founded by the Phoenicians and ...