SEAWAY PLANNING DEVICE, SEAWAY PLANNING METHOD, AND PROGRAM

A route planning apparatus (1) is provided for planning a navigation route of a ship. The route planning apparatus (1) includes a display unit (19) for displaying a chart on a screen; and an operation unit (18) configured to designate a position in the screen. In addition, the route planning apparatus (1) includes a storage unit (17) configured to store one or more potential base points that may be a potential base point of a waypoint; a point setting unit (12) configured to set a waypoint on the chart in response to a navigator's operation; a base point acquisition unit (13) configured to extract the base points within a predetermined range of the set waypoint as a reference from the storage unit (17); and a base point determination unit (14) configured to determine the extracted potential base point to be the base point of the set waypoint.