There’s never a shortage of things to see in Barcelona, but for visitors, there’s often a shortage of time. Cycling around to take in the city’s sights is an incredibly efficient, fun and healthy way to enjoy everything Barcelona has to offer, from the sea to the monuments to the vibrant streets that make this the energetic place it is. Taking a spin around a city as bustling as Barcelona can be intimidating, but beginners, have no fear — most of the stretches on these routes are equipped with a designated bike lane. So grab a friend, hop on a bike, and get pedalling.

http://www.timeout.com/barcelona/things-to-do/barcelona-cycling-guide