boats; boats on paddles; cargo boats, maintenance and small reparations; fishing boats; harbours, operation; lighterage, shipwrecks, salvage activities; navigation, steering and anchoring of ships; passenger ships; pleasure boats; quays, working; sailing boats; ships; sport boats; steering, navigation and anchoring of ships; tankers; tugboats; unloading by lighter; watercrafts; water-gate; winter parking places for ships, business; yachts