Hi fellas - thanks.
Will add the trip to Carysfort. Here are some details:
My girls are 14, 12, and 8; very good swimmers, new to snorkeling, used to going to the beach for vacation. Admiral and I are 43
We are staying near Marathon at a place called Gulfpointe the

will be slipped on the Gulf Side. Looking mostly at day trips - MAYBE an overnighter...also want to scope out what to do on a return visit in December where we would stay on the boat.
I do not want to miss any of the "have to do" activities in the keys. Not sure what they are - but Sunset Drinking, Parrot Head Singing, are part of the interest. Have to keep girls from wishing they went to the beach instead of the keys.
I am afraid of shallow water (running aground) , gators, and storms.
Want to snorkel near the Christ of the Sea and any other cool place - (rent or buy gear?)
Really interested in a trip fro Marathon to Flamingo City in the Everglades - worried about fuel - and time - 38 miles is a long way...can it be doe in a day? is there Gas in Flamingo City? What is the attraction of Shark River? Are there places to hide from in-climate weather along the way?
Are there resources I can tap into?
Thanks guys,
Bob