Best Sightseeing Open Sky, this tour is amazing, lasting an average of 7 hours, and it passes through the main points of the Sintra Mountains (the Sintra Mountains in Portugal are part of the Cultural Landscape of Sintra, located within the Sintra-Cascais Natural Park, which was classified as a UNESCO World Heritage Site in 1995). The tour sold here includes the best beaches and surrounding areas, with a focus on the Pena Palace, Azenhas do Mar, and Cabo da Roca. The passenger has the option to be picked up directly at their hotel in the Lisbon*, Sintra, or Cascais area (*subject to availability).