Learning collision regulations (also known as Rules of The Road) can be a real challenge. These cards show the view forward from the deck of various vessels (power, sailing and fishing) of developing traffic situations at sea. In each case the mariner has to decide the correct course of action to navigate his vessel through the hazard. The reverse of the card gives the proper course and also quotes the relevant collision rule. There are over 50 cards in the set. Presented in a clear plastic hard case.