Hello, I plan to spend 7 nights next summer between Lisbon and Estoril. First time to the area. I want to experience the culture, see the sites, eat well and have some R&R by the sea. How does 4 nights in Estoril and 3 nights in Lisbon sound? Which city is best to visit Sintra from? I have a particular interest in photography and always happy to get up early for sunrise. Thanks in advance.