As in most cruises, there are always long days at sea between ports from a full day to a week or more. It all depends on the length of the cruise and its itinerary. If you enjoy spending time on board for days, repositioning cruises are the best, they are cheap with a lot of sailing days. We've never done this because my wife hates long sea days. A two-week cruise is her max or she won't go.
On sea days, they have formal nights, deckside barbecues, midnight chocolate madness, and whatever else they can think of to make sailing days exciting or less boring. This is the first time I ran into a brunch and I did not even know the ship was having one until someone in our group mentioned it. It was a so-so affair but it was a change of phase from what we were used to.
When we arrived, the presentation was no longer in its virgin state LOL.
These two young professionals from Hongkong shared our table. They prefer to do the land excursions on their own. They ventured too far in one of them, they had to take a very expensive taxi ride to barely make it to the ship in time. When I was their age, I used to be left behind by my bus, ship and plane and it did not bother me one bit. It is all in the spirit of adventure. Not anymore, now any unintended change in itinerary bugs me no end.