One of the most popular dive off North Carolina’s coast is the sunken U-352.  You should be an advanced open water diver before making this dive.  Penetration is not recommended.  There is a link to a really good U-352 video at the bottom of this article.  Enjoy.

DIVING NOTES:
Diving Depths: 100-115 ft.
Visibility: Generally very good; range 50 to 100+ ft.
Current: Slight to moderate
Summer Temperature: high 70s to lo 80s
Points of Interest: Hey! It’s a U-Boat! What more needs to be said?
Fish/Animal Life: The usual array of NC marine life, with unusually smart grouper and small tropical fish.
Description:This is the wreck that most of the people first come to North Carolina to dive. The wreck is small and intact and can be circumnavigated a couple of times during a normal dive. It is sitting on its keel, with a strong (45 degree?) list to the starboard side. Most of what you see on the bottom is the remains of the pressure hull. The U-boat’s outer casing has, for the most part, rusted away. For experienced NC divers, the biggest challenge of the U-352 is waiting for the boat captain to hook the wreck. It’s small size and rounded edges make it the one the captains love to hate. New NC divers, however, beware. For some reason, over the years, the U-352 has claimed more that its fair share of diving accidents and fatalities.  
 
http://youtube.com/watch?v=3BLYeUoTPbE&feature=related