Midway...tora tora tora.....sink the Bismarck.....on youtube look up sea battles
What are a few good movies that are centered on Naval Warfare?
The Pursuit of the Graf Spee, Operation Pacific , The Sea Chase, Crimson Tide , U571 , The Enemy Below , Pearl Harbor , and The Battle of the Coral Sea comes to mind. One of the very best was : They Were Expendable. All great movies. Don't forget, Run Silent, Run Deep.
Navel means belly button. I think you may be in porn territory.