Subcategories:
— rock boat to move forwards (1)
— tow (6)
— propel through tunnel by legs (1)
— raise or lower by lock (1)
— raise by cradle (1)
— guide or control by ropes (1)
— by hauling on ropes (2)
— move or swing by spring (1)
— by hauling on anchor (1)
— move over shallows by tackle and spars (1)
— by dragging or carrying over land (2)
— adjust paddle-wheel floats (2)
— feather propeller (1)