A route guidance system for a car navigation device can include: a control unit configured to operate as: a life log information receipt means configured to receive the life log information from a life log acquisition device; a condition setting means configured to set a condition based on a selection by the user of at least one condition among a plurality of conditions including a moving condition for route guidance and a user activity condition relating to user activity; and a route guidance means configured to provide route guidance based on the life log information and the condition set by the condition setting means and to provide to the user a suggestion of moving using a moving means other than a vehicle, or a suggested place to spend time for exercise, based on a destination set by the user and an expected arrival time at the destination.