Active vs. Passive Destinations
Another thing to consider is whether you prefer active or passive activities while in port. For example, I thoroughly enjoyed my visit to Pompeii the last time that I was in Italy. Even so, it was a passive experience. Once you are there, there isn’t really anything to do other than to look at the ruins.
Some destinations are better suited to those who prefer an active experience. For example, many cruise lines will allow you to go dog sledding in Alaska or white water rafting in Costa Rica.