We are considering a beach vacation in Florida at the end of May/early June and have been considering Sanibel/Captiva. Our children have never been to a beach before and have never flown before, so we want to ensure the best experience possible. Priorities are: excellent beach experience (sand and shelling), family-friendly accommodations with lots of activities for the kids or located close to other activities, and simple travel. Any input would be greatly appreciated! Kids are 6 and 8 years old. If you have location suggestions other than Sanibel/Captiva, we would love to hear those as well.