Hrqls: Well, about Lisbon, Cascais or Sintra, I'm sure some compatriots could tell you a lot more, because I only go there almost as a "punishment"...just kidding, but truth is that I only go there in work, so I guess who lives there will have better information rather then me...However, if you ever think about visiting Oporto or Minho (north), I can help you find places to stay or good restaurants to eat. All depends, of course, of your economic planning for vacations...