Looking at the Lisbon districts map might be intimidating, as the city looks huge.
In actual fact though, Portugal’s capital is incredibly walkable, if a little hilly. With a good pair of sports shoes, this is very doable for most. Plus, most of the inner city attractions are located very close to each other, so there’s not much of a commute between sightseeing stops.
And if walking becomes too much, however, there are plenty of trams to transport visitors around the Lisbon districts. Or, those preferring private transportation options can hail a taxi or opt for a shuttle during their tours.