111008-N-DR144-882 SAN FRANCISCO (Oct. 8, 2011) Sailors assigned to Nimitz-class aircraft Carrier USS Carl Vinson (CVN 70) explore the San Francisco waterfront while on liberty. Carl Vinson is anchored in San Francisco, the ship's original homeport, participating in Fleet Week festivities. U.S. Navy photo by Mass Communication Specialist 2nd Class James R. Evans (RELEASED)