The nice appartment is in Monte Estoril, one of most beautiful places right between Estoril and Cascais whith its walk aways. Here your are very near of Lisbon, Cascais and Sintra.
Public transport is 5 minutes away train.
You can walk Estoril Casino or Cascais Vila and Marine. You get the train to Lisbon 30 minuts, bus to Sintra 20 minuts, car 15 minuts Here you can rest and relax, play and explore!
You can grab the Airport Bus or subway to Cais do Sodre and grab the train to Monte Estoril.