Final answer:
A West Cardinal Buoy signifies that the safest water lies to the west of the buoy, which makes the statement true.
Step-by-step explanation:
The statement 'Cardinal Buoy West indicates that the safest water is to the west' is true. Cardinal buoys are a type of buoy used in maritime navigation to indicate the location of safe water. A West Cardinal Buoy is placed to the west of a danger and signifies that safe water lies to the west of the buoy.