OK... Confession Time.
Don T and the "Best Girl" are NOT cruising types. By that we mean going on a cruise, landing at 7am and be back by 4pm. We did that once in the Mediterranean on an Expedition Yacht (160 Passengers) and really didn't like it. It was too stressful and we didn't see much!
BUT - sometimes a cruise is the best way to capture the essence of an area. Sometimes - like in Antarctica - it is the ONLY way! When dealing with far reaches of the world, there are often no other way to get there!