Navigation apparatus, position information registration method and program thereof

According to the present invention, there is provided a navigation apparatus which includes position information acquiring means acquiring position information of a parking position; parking information acquiring means acquiring information as to a parking time in the parking position; and memory means storing the position information acquired by the position information acquiring means when it is judged on the basis of the information as to the parking time acquired by the parking information acquiring means that its parking time exceeds a predetermined time.