Here, the USS Zumwalt class' is pictured as what looks like a military mining operation in the South Georgia and South Sandwich Islands for rare earth metals such as Neodymium and Gadolinium. Just an educated guess.
160421-N-YE579-003 ATLANTIC OCEAN (April 21, 2016) The future guided-missile destroyer USS Zumwalt (DDG 1000) transits the Atlantic Ocean to conduct acceptance trials with the Navy's Board of Inspection and Survey (INSURV). Acceptance Trials are the last significant shipbuilding milestone before delivery of the ship to the U.S. Navy, which is planned for next month. While underway, many of the ship's key systems and technologies including navigation, propulsion readiness, auxiliary systems…
The Zumwalt class destroyer (DDG-1000) is a planned class of United States Navy destroyers, designed as multi-mission ships with a focus on land attack. Description from wn.com. I searched for this on bing.com/images
161017-N-CE233-184 CHESAPEAKE BAY, Md. (Oct. 17, 2016) USS Zumwalt (DDG 1000) approaches the Gov. William Preston Lane Memorial Bridge, also known as the Chesapeake Bay Bridge, as the ship travels to its new home port of San Diego, California. Zumwalt was commissioned in Baltimore, Maryland, Oct. 15 and is the first in a three-ship class of the Navy's newest, most technologically advanced multi-mission guided-missile destroyers. (U.S. Navy photo by Liz Wolter/Released)