a
chart is the name for a map of the
sea. These charts show things such as the depth of water, the kind of bottom, the location of wrecks, submerged
rocks, the tides and currents and where applicable, the coastline and its features. Charts are kept in a chart room which is usually located
close to or on the
bridge. See also
bridge in this glossary.
(nautical) a room for storing and working with charts, navigational instruments, etc.