SMALL GROUP TOUR: Take in the best of central Portugal on this 3-day escorted group tour from Lisbon. Explore Obidos independently and see the famously giant waves of Nazare. Discover Aveiro, the 'Venice of Portugal' and enjoy a great mix of included sightseeing and free time in Porto. Visit the historic university in Coimbra and wander the streets of Tomar, seat of the Knights Templar.