Just realized the "on-board" time for our port stops is an hour prior to the departure time listed on the itinerary. For all our ports we were going to be back well before but we did have one stop (Barcelona) where the plans we made would only get us back to the ship about 15 minutes prior to the 5pm on-board time (6pm departure listed). We're ending a walking tour at 4:30 and should be a 10-15 minute cab back.
Just for my peace of mind - hopefully - do they build a little leeway into those times? So if, for example, every street to port gets blocked to vehicles and we end up having to walk and get there at 5:15 should we have any issues? I would assume they set the on-board time a hour prior to make sure there's a little buffer for late people but just wanted to make sure that gangplanks don't get pulled up right at the on-board time. As I said, our plans do get us back prior but want to also anticipate worst case scenario and make sure we'd still be fine.