Lots of activities on shore, and if they don't already sail, a list of things to learn ahead of time will pay off. Keeping their attention while sailing, docking or mooring can make or break their day instead of you just driving them around in a floating mini van

Best plan is a rough outline, without too many details. I see some people really enjoy planning every moment, but if the kids love a spot, what's the hurry to get out, just to keep a schedule? Most kids really appreciate a chance to be involved in their planning of a day.