A fun way to discover Barcelona is to go by bike. We don’t have experience with it, but since the ‘hot spots’ are not far from each other, traveling by bike in the sunny weather can certainly be a good option. Of course is walking arround a good option if you don’t want to the hussle for renting a bike. And if you go by foot and you’re tired of walking, remember that taxi’s in Barcelona are always available and pretty cheep by the way! See for more information about biking this link or this link.