Lisbon transportation options are plentiful, especially once you get to the city centre. Most of the city is compact; therefore, you will find it is easy enough to look around the city without requiring wheels.
The metro underground subway is safe, clean, and very efficient. It runs daily from 6:30 am – 1 am. The most popular stops include Cais do Sodre, Rossio, Sao Sebastiao, and Jardim Zoologico. If you purchase the Lisboa Card, you can use the metro for free. A 24-hour Lisboa Card costs €19.00 EUR per person, while a 72-hour card is €40.00 EUR per person.
Take the tram 28 and tram 15 to explore downtown and some of the more historical areas of Lisbon. You will find tram 28 at Miradouro das Portas do Sol, while tram 15 is found at Praca da Figueira Square and Comercio Square. You can ride free with your Lisboa Card.
Most attractions outside of city centre are accessible via taxi. Also, when the tram and metro stops operating just after 1 am, you can use a taxi for nightlife. It should not cost more than €10 EUR to ride around the city centre in a taxi.
The Aerobus goes between city centre and the airport, but the local Carris bus takes you downtown too. Take routes 727, 737, and 744 to see most of the main attractions in the city. You can also ride all bus lines free with your Lisboa Card.
Lisbon is a very walkable city. You will find that one of the best and most pleasurable ways to explore the historic downtown areas is by walking. You can stop and sit down to people-watch and just take in the charm of the area. Also, the hilly streets are well worth the hike once you reach the top.