Well, I finally bit the bullet and made a decision.
We are doing the 1/2 day Captain Marvin's on Grand Cayman.
DH wasn't interested, so I said, fine. The kids wanted to go and my DM wanted to go (who doesn't even swim), so I booked the four of us.
DH can try to find something historical to do. From everything I have seen, really not much to do on GC.
When we come back all excited and with great pictures, boy he'll regret it then!
Now I only have about 500 more decisions to make, but I guess the most important are done...yes, we are going on a cruise...and we have picked a date with the best group of people. I can hardly wait to meet you all!