I have been to most ports already mentioned, and for the most part all are fine. I did a very similar cruise a few years ago with a 9 yr old on a small boat (23''), actually stayed 2 nights at Mystic for 7/4, but continued on to Block Is. on that trip. One thing I would suggest that I havent seen posted here is deff keep your options open. Personally, I would not formulate a tight day by day plan. I''m sure you have reservations for Mystic and gotta get there for that, but otherwise I would leave options open. Weather can change everything and you may like a certain place and decide to stay longer. Be aware that the LI side of the sound runs out of ports to get too once you get so far East, you''ll need to be on the Con side, that''s not so obvious, so take a close look at that. Most of the YC''s have pools ects for kids, that is shown in the guide book, and any of those places are very nice to spend a day, eat, and get a real shower