Interestingly enough I'm on a 20 day Combo cruise, 2 10 day segments, and there are two excursions offered on the turnaround day in my planner. One of them is for those with mobility equipment only and the other is for those with canes, walkers or other mobility issues. I don't think I'll book either one.
There are none that are regular tours that day. But as stated I'm sure there will be one or more offered for that day during the first segment.