I am travelling to Portugal from March 12-21 with my family (husband and 3 kids, ages 12, 10,8).I have booked ourselves to stay in Cascais for 3 nights, Lagos for 4 nights and Lisbon for 2 nights. I thought we would take the kids to see Sintra and Estroil as well. My husband and I would also like to see if we can do a wine tour somewhere close by. Can someone recommend anything else I should be doing with my family? Does our itinerary sound reasonable? We are renting a car as well.