There is a top deck you can go up onto for the ride also.
I spent a couple of hours walking through the Historic Jamestown. You can see it as you are on the Ferry as it is right on the bank of the James River.
I really liked this old Church.It was from around 1907 and in very good condition.
From Jamestown I took Colonial Parkway to Yorktown. Just outside of Yorktown I came across this stand of what I believe is Bamboo.