In the morning we walked from El Raval past La Rambla to Barrio Gótico and the area around the Barcelona Cathedral. We went for coffee at the famous Els 4Gats (The Four Cats) cafe that opened in 1897 and used to be a popular meeting place for famous patrons such as Picasso, Rubén Dario, and Antoní Gaudí. Picasso began frequenting the cafe when he was 17 years old.
Next we walked over to the Plaça del Rei which is a medieval public square from the 1400s and is surrounded by gothic buildings. It is the courtyard of the former Royal Palace which is now the Museu d'Història de Barcelona (Museum of Barcelona History).
From there we took metro line L3 to Plaza España and then Bus 150 to the Montjuïc Castle at the top of Montjuïc Park which overlooks the Barcelona harbour. Montjuïc Park is also the site of the Museu Nacional d'Art de Catalunya (MNAC) which is housed in the Palau Nacional and the Olympic Ring, stadium, and museum from the 1992 Barcelona Olympics.
From Montjuïc Castle we walked all the way down to Paral-lel Avenue and back to El Raval. There are great views of Barcelona and the Mediterranean all the way down the hill.