I need some help. My husband and 2 children, ages 10 and 11, are staying in Marathon in the Keys from 7/16-7/22. We arrive in Fort Lauderdale on 7/12 in the evening. I have 7/13-7/15 free and I'm not sure what part of Florida we should focus on. My oldest really wants to swim with manatees, but from what I've read at this time of year they aren't hanging around in the Crystal River area. I've though about staying on the East side or coming over to this area and see Naples, Cape Coral etc. Any advice on what we should do would be much appreciated.