Safety netting for children
Let me know if you make it to the mid-Cheasapeake area. Herrington harbor is a nice transient marina (pool, even a kiddie pool), though expensive as they all are. We live in a marina right next to it. Last year we made the trip from NC. If I remember, a Lord Nelson draws a lot of water. We draw 6 ft and grounded a couple of times. Just watch the current around the inlets and you should be fine.
Have a great trip!