Navigation apparatus and storage medium

A navigation apparatus comprising:

• an estimation section which estimates first environmental information in a movement route candidate of an object based on observation information observed in real time in the movement route candidate;
• an acquisition section which acquires second environmental information of a surrounding of the movement route candidate;
• and
• a guidance section which guides a movement direction for the object along the movement route candidate based on the first environmental information estimated by the estimation section and the second environmental information acquired by the acquisition section,
• wherein the second environmental information is different from the first environmental information, and the second environmental information comprises information which is registered in advance in correlation with a time and a location,
• wherein the time corresponds to a time of day at which the movement direction is guided, and the location corresponds to a location of the surrounding of the movement route candidate, and
• wherein the estimation section, the acquisition section, and the guidance section are each implemented via at least one processor.