When we were on the shortened Alaska cruise right after Mush, losing one day and two ports, Regent did it right by having a letter in our stateroom at embarkation stating that we would be given any 7 day cruise of our choice over the next two years at the same cabin level. They also made all drinks free.(this was before all inclusive) Never a negative word was heard from passengers. This was great on Regent's part and I have certainly spread the word. When you figure that they were giving up about 300 cabins over two years it probably didn't impact them too much. There are almost always a few unsold cabins on each trip.