The Port of Yokosuka in Kanagawa prefecture, with the Japan Maritime Self-Defense Force and U.S. Navy base lying within it, is a major naval port. The naval port originates from the shipyard built here by the Tokugawa shogunate in 1871. It expanded as the Yokosuka Naval Arsenal and Yokosuka Naval District of the Imperial Japanese Navy, and now it is the home base JMSDF Self-Defense Fleet Headquarters and the U.S. Seventh Fleet.
Taking part in a tour of Yokosuka naval port from sea on the Cruise of YOKOSUKA Naval Port.