Cabo da Roca is a cape at the western coast of Portugal in the Lisbon Region. It is the westernmost point of the European continent.
Take a train from Cais do Sodré train station to Cascais. It takes 40 minutes and costs 2,2 euro. From Cascais there are regular Scotturb Bus 403. It takes 22 minutes and costs 3,30 euro.
Take a train from Rossio or Oriente train station to Sintra. It takes 40 minutes and costs 2,2 euro . From Cascais there are regular Scotturb Bus 403. It takes 37 minutes and costs 4,15 euro.
Tagus (Tejo) river/Mar da Palha.
If you feel like spending you can get a certificate of your presence at the westernmost point of Europe.
You can go from here towards Sintra or Cascais or dare towards Mafra.