A nautical chart shows water depths, navigational hazards, the location and characteristics of navigational aids, anchorages, and other features.
What do nautical charts show?
A nautical chart is one of the most important tools a mariner can have. It is a map that illustrates the coastal and seafloor structure.
The locations of canals and water depths, overhead barriers, bridges, and undersea cables are all included on charts. When boating in bays or huge lakes, this is extremely useful.
They show you where you are and what else is supposed to be there. Nautical charts show important water areas in detail. Land contours, water depths, and other details are presented.
Check out the link below to know more about nautical charts;