 The opening of Walt Disney World in October 1971 shifted the economy of Central Florida away from agriculture, military installations, defense/aerospace industries, and the NASA manned and unmanned space programs, and further towards tourism, service industries and residential development, the center of which is Orlando.But because of Sanford's former preeminence as a trade center, the city retains a significant collection of older commercial and residential architecture, on streets shaded by live oaks hung with Spanish moss.Its location on Lake Monroe and access to the navigable waterway of the St. Johns River has made it Central Florida's additional center for numerous marinas, allowing access for pleasure boats and commercial vessels to and from the Atlantic Ocean and the Intracoastal Waterway via Jacksonville and Mayport to the north.