Sheraton Cascais Resort has an enviable location on Portugal’s sweeping Atlantic coast just 30 minutes from Lisbon.. Located in the heart of Quinta da Marinha, the most exclusive area of the village of Cascais and just 20 minutes from the center of Lisbon, the Sheraton Cascais Resort is the ideal destination for all occasions: family holidays, or business trips in a privileged region Lisbon by the sea.