• Weekends pack in more, since the day pass adds the birds-of-prey flight and the bees program to the guided electric-car tour and trails
• Pick a tour time at checkout: the electric-car tour runs at set times (11:15am and 3pm on weekends), and buying online skips the ticket line
• Arrive early for the trails, as last entry for a walking or bike trail is 4pm, and on weekends you need to enter by 2pm to fit in the whole day pass

Tapada Nacional de Mafra is a walled forest that began as the royal hunting ground of Mafra's palace. Fallow deer, red deer and wild boar live free inside, and a guided electric-car tour climbs from the main valley to one of the highest points. Kids can also walk or bike marked trails, watch a birds-of-prey flight demo and learn about the forest's bees. It sits about 40 minutes' drive from Lisbon.