Located at the southern end of Oshima Island, Ehime Prefecture, Kirosan Tenbo Koen Park reaches an elevation of over 307 meters. The park is equipped with an observation deck that boasts a panoramic view of the surroundings, including Mt. Ishizuchi, the highest peak in western Japan. From the deck, visitors will also have an unobstructed view of Imabari City and the Kurushima Kaikyo Strait Bridges, both of which are beautifully illuminated after nightfall.