If possible, the photos do not do this apartment justice. The views are truly spectacular. There's a path a few feet from the front door to a paved path down to the sea. There's a seaside restaurant there, which we didn't eat at.
Mario has thought of everything, including some games for the kids. Though we didn't use them, there are beach chairs in a storage room (it was too windy for us). The decor is playful yet tasteful. It's a surprisingly roomy apartment.
There's another restaurant just a few dozen yards away that is supposedly superb. But be careful: it might book up quickly. The restaurant owner operates a little wooden pavilion near the restaurant where he serves Portugese drinks, beers, sandwiches, which are superb, and ice cream. Getting an Uber to Sintra was no problem.
Mario and his wife met us when we arrived. They are charming and gracious hosts. Thank you for the wine, Mario! It was wonderful.
We didn't want to leave this wonderful location. You won't either.