I would seriously hope not to be on the ship by 11 am since the rooms are not accessible until after 1:30. That's a long time to drag any carry-ons around. If you are smart enough to have every bag checked except your swimsuit and camera bag, I would head to either or both buffet(Cabanas/Topsiders) for lunch and/or the pools/aquaduck for relaxation. If you aren't eating or swimming, wander the ship from deck 2 up to top. Familiarize yourself with where everything is (restaurants, bars, clubs, theaters, shops, laundry, Palo/Remy/Meridian etc). Take lots of pre-trip photos, because once the cruise starts, time seems to race. Checked bags usually delivered to hallway outside your stateroom before 5pm. So hopefully you have 2nd seating.