We used Spain Day Tours for a full day tour of Lisbon, Sintra and Estoril. Their service, pricing and professionalism was outstanding. The guide met us at the port and it was a full day of touring. Our group was small (less than 20), the guide was fluent in English, the bus was modern and comfortable. There was a great deal of walking on this tour but we were all notified of the amount of walking when we signed up for the tour. Although your contact with them is through email, their service response time was excellent. All questions answered in a timely manner. I highly recommend Spain Day Tours!