Sure thing!
So, you would take the Garden State Parkway all the way to the end (Exit 0) and then turn right (don't go into Cape May). That's Rt. 9 and by the second light you're taking a NJ "jug handle" by exiting right to turn left and head straight to the ferry (through 3 lights). Once you make the crossing, you exit the ferry by turning right, and then following signs and the other passengers to Rt. 1.
From there the route we take is:
Rt. 1 S (about a mile on very heavily traveled multi-lane road. Stay right).
Rt. 24 (W, I think, but there's only one way to go on Rt. 24 at this point, so don't worry about it. About 15 miles. Two lane road. Several lights and lots of services along that way -- gas, mini-marts, restaurants, etc. Usually about 45 mph travel speed.).
Rt. 113 South (this turn comes after passing through a small town and seems to come out of nowhere. Once you're on it, it's a divided highway for a bit with some traffic lights. About 50-55 mph travel speed. Eventually the lights are done with and it's smooth sailing.
Rt. 13 South (this is also a divided highway with traffic lights. When in VA, do not exceed the posted speed limits much. Near the "towns" the speed drops from 50 mph to 45 mph...that seems to be where the cops get irritable. Between towns local folks seem to go 55 - 60 mph, but drop right to 45 mph in the towns).
Rt. 13 will take you all the way to the Chesapeake Bay Bridge-Tunnel. That's pretty cool. After coming out of the second tunnel you can hang a right (immediately) and check out the rest area with restaurant and gift shop...
Then, you'll drive Rt. 13 through VA. Beach area. Stop and go for a bit. About 40 mph...but with traffic and traffic lights.
(Around the VA Beach area is a spaghetti string of highways all with the number 64 in them. No one ever thinks anyone would possibly come this way to pass through, so don't expect to see a sign for Rt. 58 or I-95. We have done this pass through incorrectly so many times, we have decided on this next part of the route for us, which adds about 2 miles to the journey.)
Rt. 64 towards Suffolk. Suffolk is your key word here. Just head towards Suffolk. Travel this for almost 20 miles.
Then you will briefly be on
I-664 until you are
exiting on Rt. 13 towards Suffolk, which becomes
Rt. 58.
Rt. 58 you take across VA and hook up with
I 95 S. This area has a few lights and is not a limited access highway, but most the time, travel speed is about 55 mph.
HTH
Coming from Brooklyn, it'll be a whole different ride for you, as you're going through a lot of rural areas, esp. on the Eastern Shore, esp. in MD and VA. If you see a place you want to stop to eat, DO IT. We have had good luck with random places along the way -- definitely not chain restaurants!
Website for the ferry:
http://cmlf.com/
Website for the bay bridge-tunnel:
http://www.cbbt.com/