Thanks for all the suggestions so far!
The Cozumel trip sounds good, but I think we need to travel sometime during the 1st part of July because both boys play multiple sports and have summer camps.
We have taken many cruises and done lots of snorkeling, especially at Grand Cayman, Belize and Roatan.
I'll have to talk to my wife about one of the small Cayman islands. She might not mind reading a book on the beach
However, Curacao sounds very interesting with the shore diving. The only equipment we own is the boots, mask, fins & snorkel. Do the dive shops rent by the week or do we have to rent at each beach we want to dive from - assuming we want to move away from the place we are staying. I know my wife would want a DM with us (we have dived less than a dozen times), even diving in 20 ft from the beach, so is that "normal" there or would we have to book "excursions"?
Will also have to give more thought to the Florida Keys. Not as exotic as traveling to a foreign country, but might be a good fit here.
Looks like a lot more research no matter which way we go.
Thanks again for the suggestions so far and let me know if you have more or answers to my thoughts about Curacao.
PS - is email notification working? I did not get any for all the previous responses and I have "Instant email notification" picked... Do I need to do something in my profile or somewhere else besides picking it when I post?