Im having a hard time figuring out how to do US in one day. How long is the studio tour? I like going to the city walk and love to have lunch at bubba gumps. I've only been to US once and spent most of it on the city walk with my mum She wanted to do shopping... so im going again but im not sure of the best way to do Universal in ONE day. Theres so much to see. Should I do the tour first thing in the morning and then hit some of the rides and then the city walk?