When we cruised on our land/sea trip we did the land portion first so we had the choice of either being picked up at the hotel by
DCL bus or picked up and brought to PC at Ak.
We advised the Dcl clerk that we would go to AK since the dcl bus would have picked us up at the hotel at the about same time ( 12:30 ) as it does at AK.
All you have to do is make sure your luggage is all ready when yo leave to go to AK. A clerk will come pick them up in the hotel room and send them to the ship directly. You can bring a carry on bag that you can leave with the DCL clerk tat works at AK. When you arrive at AK, you advise this clerk and he checks his list and stores your carry-on safely while you visit the park. You are given a time and place to meet and then lead to the DCL bus that drives you to PC. It takes about 45-50 min to get there.