so this thread is full of expert advice, right? certainly lots of agreement.
well documents from aman venice match much of it, some word for word.
how often does a hotel do that? seems like a major part of aman to me.
http://www.vtp.it/calendario/
shows cruiseships etc
up to 7 and even 8 per day, including giant ships
hard to plan around, but easier to look up one's travel dates
edit - re some of my comments on cruiseships - while there may be some theoretical ideal of spreading arrivals out over every day, i realize that is not realistic nor even possible to coordinate to that degree.