Port Vell is great for families and daytime activities. The place itself is huge, and heavily transited by people on the weekends. This includes, tourists and locals! There's a huge bridge which you can cross, and right across you have a shopping mall that has so many stores and a food court as well. This makes the experience very fun, and also innovative. Another plus to this location, is the fact that you can take boats here and do a tour of the city. These boats go at a nice speed, and allow you to see most of the most famous parts of Barcelona. I really enjoyed it.