Yes - there is a "Walking Ship Tour" offered usually at least 1-2 x in the early afternoon on embarkation day. it was fun, but not very detailed - they basically took us around to show us where the pools, MDR's, and theatres were on the ship. If it's your first time on Disney, you will find it helpful, but totally not necessary if you don't make it. We were able to find our way around pretty easily after our first day or two.
Aby