Chub Cay to Black Point

0500, December 8, 2014 in route to Nassau.  A ship with no lights, except minimal required running lights, and no AIS signal appeared on our starboard beam and silently slip across our bow going at least 20 knots (we were traveling at 10 knots) as the night photo shows it had forward guns and the silhouette of a US Navy ship.  The ship was coming out of the Tongue of the Ocean. I know from my Navy days the U.S. Navy had operations in this area.
We approach Nassau as the sun rose and requested permission to pass through Nassau Harbour to the Bank on the east end from harbor control as required. Passing the Cruise Ship piers we noted a 250ft plus super yacht sandwiched between the cruise ships.  She was obviously too large to for the super yacht basin at Atlantis no more than a mile away. Bigger is better? This is the only dock for a ship this size in the Bahamas, nested between cruise liners!
Seas were calm on the Bank.  We again hung out with Jackie on the fly bridge.  We dropped anchor at Black point at 1630 hours.