The Ferry Boat Marina encompasses the area beginning at a point at or near Lat. 38° 35.547' N., Long. 76° 2.987' W., then running 99° (True) to a point, at or near Lat. 38° 35.545' N., Long. 76° 2.973' W., and running to the head of the marina. This area has a 6-knot speed limit all year.