TANK DIVE U.S. Navy sailors dive in the Tennessee Aquarium saltwater tank during a Chattanooga Navy Week event. Chattanooga Navy Week is one of 21 Navy Weeks planned across America, Chattanooga, Tenn., June 8, 2009. Navy Weeks are designed to show Americans the investment they have made in their Navy and increase awareness in cities that do not have a significant Navy presence. The sailors are assigned to the Mobile Diving and Salvage Unit 2 based in Little Creek, Va. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 995639-I-NKX98-802.jpg Photo Gallery