C

Cable:
1: Chain, wire or rope connecting a vessel to her anchor(s).
2: (measurement),185.2 metres, i.e. one tenth of a nautical mile.

Capsizing: Turning of a vessel upside down while on water.

Cardinal buoy: A seamark, i.e. a buoy, indicating the North, East, South or West, i.e. the cardinal points from a fixed point. such as a wreck, shallow water, banks, etc.