One of the best days I had in Barcelona was going on a bicycle to "La Carretera de les Aigües" The water road, on Collserola Park on a Sunday. I'm no Lance Armstrong or Alberto Contador so I would recommend this to anyone in good shape who likes to take it easy as the whole route is mostly flat or downhill. It is easy as I took my bike on the train from Balmes with Provença street up to the Peu de Funicular stop …