Traveling around Lisbon is easy with the integrated public transportation system that includes trams, buses, and the metro. The best way to see the city's sights is by riding Tram 28. It's a popular tourist attraction and a fun way to explore the city, but be wary of pickpockets. Taxis are also a convenient way to get around, but they can be expensive.
Here's an estimated cost breakdown:
If you have more time, consider taking a day trip to Sintra or Cascais, both picturesque towns that offer beautiful scenery and local culture. Alternatively, if you have less time, you can skip the Carmo Convent or the Belem Tower and spend more time at the other attractions. Also, make sure to wear comfortable shoes as the city has many hilly roads and cobblestone streets.