Do not be tempted to ride the roads! The Portuguese people are very very friendly, warm, welcoming, and gregarious---until they get behind the steering wheel! Portugal leads Europe in traffic accidents, they seem to have problems judging speed and distances, they consider traffic signs and warnings as recommendations at best, they have no idea of the dangers involved in driving so pedestrians and bikes are always but always at risk. Wear some sort of reflective jacket anywhere near a paved stretch flags attatched to saddlebags lights anything at all to attract attention. This is no joke or laughing matter it is Portuguese reality.