We did b2b2b. So many of our cruises were canceled we decided to do this. Wonderful is not good enough. Ship was at reduced capacity no problem with that. Mask among us who are vaccine was never a problem. I have a difficult time with masks, problem was almost non existent Show were available to us all over the ship Adult only pool was closed to unvaccinated . Walking to shops and in shops masks were needed. It turned out to be a small problem if any at all. Capacity was enforced only problem with that was the people who just spend the day in the pool with a large group of friends and never get out. The pool attendant did their best to fellow the rules but I am sure no one though of this situation. We do hope the cruise lines will find a solution for other people to use the pool. Maybe they should have people take a bathroom break after an hour. Might work