Great place out in the countryside - you can just about hail and Uber there from Sintra for €10 or so - and back as well, even if it looks a bit of a trek for the driver! Otherwise though, we walked everywhere.
Was a tiny bit cold without heating - though plenty of blankets and we weren't too troubled. Two miles away, there is an extremely famous seafood restaurant to walk to - Restaurante da Adraga - and that's where you will find the seaside too!
The place was very pleasant - the views in the morning were beautiful, with mountains and hills around and at night, extraordinarily peaceful. A lovely getaway!