Barcelona is a well-connected city with various transportation options such as metro, bus, and taxis. The best way to travel around the city is by metro, which is fast, reliable, and inexpensive. A single ride costs €2.20, but it's recommended to buy a T10 card (10 rides) for €10.20. Taxis are also available, but they are more expensive. It's recommended to use only licensed taxi services or ride-sharing apps.
If you have more time, you can include a day trip to the beautiful Costa Brava, visit the stunning Palace of Catalan Music, or indulge in some retail therapy in the trendy boutiques of Passeig de Gracia. If you have less time, you can skip Sitges or minimize the time spent in El Raval. Don't forget to try some traditional paella and cava, and explore the art scene at the famous Picasso Museum.