Hi,
We are spending 2 days and a half in Barcelona the 2nd week of May. Should we book our tickets for the the hop-on hop-off bus + access to Park Guell and La Sagrada Familia on line now? Is there any site that you would recommend us to buy the tickets from?
Also, what would be the best and cheapest way to stay connected in Europe with our cell phone (we are from Canada)?
Thank you for your advice!