As a back-to-back cruiser, check-in was a non-event. We got our new key cards the day before this cruise started.
People started showing up at 10am for the Noon boarding. That resulted in a self-inflected jam-up when they started boarding around 11:30am. By 1:30pm you could just walked onto the ship to register.
The itinerary was split between 2 large cities and 3 small historic towns. We were supposed to go to another small town (Faaborg, Denmark), but a strike on the Kiel Canal prevented the ship from getting there.