Why go
It is useful when the distance is too long for a central walk or when an itinerary reaches beyond the historic core. The system links central Porto with suburban areas, but not every central sight sits close to a station.
The full story
Porto Metro combines underground and surface light-rail sections, so it is best thought of as a city-and-suburbs network rather than a complete substitute for walking. It can shorten longer cross-city journeys and forms part of the airport approach, while the compact historic centre still rewards travel on foot. That contrast matters when planning: use the metro to bridge a larger gap, then allow time for slopes, weather and streets around the final stop, particularly with luggage on sloping streets. Fare zones, card types and ticket rules are operational details that can change. Before travelling, check the current network map, ticket options and validation guidance from the operator, especially if your route crosses the city boundary or begins at the airport.