I'll PM you Tom - appreciate it. Thought about it, John, but for reasons stated below, don't think it will work.
The situation is a little more complicated. I'll be there with my brother who will be, at that time, in the aftermath of an intense chemo/rad treatment for the big C. This will be part of a "coming out" celebration for him. Based on all the input we can get, he should be able to travel in short bits (lives in NH) at that time, but will need recuperative breaks.
I've checked a lot of afloat options (definitely preferred if not for other issues), but once you're on the cruise boat - you're there for a 10 hour day. Not sure that will be tenable.
Second best is landside. I'll pack the binos.