The Zaoyama Observation Deck is the eastern entrance to the Atsumi Peninsula, offering a 360-degree panoramic view. On clear days, one can view not only the entire Atsumi Peninsula, but also the mountains of the Japanese Alps and Mt. Fuji. The Hoshizora Terrace on the second level is illuminated at night, and you can enjoy a wonderful environment that creates the “four seasons of Mt. Zao” with lighting that changes according to the season.