Mount Misen, Sacred mountain and natural monument in Hatsukaichi, Japan.

Mount Misen is the 535-meter summit at the center of Miyajima island. Its north slope holds the Misen Primeval Forest, a national Natural Monument where fir and Japanese hemlock grow above 400 m alongside the evergreen oak Quercus salicina. The summit area has the Miyama Shrine and a rebuilt 2013 observatory, and the mountain lies within the Itsukushima Shrine World Heritage area.

Mount Misen has served as an important religious site since 806 AD when Buddhist monk Kūkai visited the area, establishing its sacred status that has attracted pilgrims and spiritual practitioners for over 1,200 years.

The Seven Wonders of Misen come from ancient tales. Kiezu-no-hi, the eternal flame said to have been lit by Kūkai in 806, burns in Daishō-in's Fushō Reikadō hall and supplied the pilot flame for Hiroshima Peace Memorial Park's Flame of Peace. Kanman-iwa, a rock about 500 m above sea level, holds water that rises and falls with the tide. At night, wooden clappers (hyōshigi) are said to sound, attributed to a tengu.

Visitors can reach the summit through several hiking trails taking 1.5 to 2 hours, or use the Miyajima Ropeway for easier access, with basic facilities including restrooms and a small café available near the cable car station.

Among the Seven Wonders of Misen is Hyoshigi-no oto: on quiet nights the clack of wooden clappers is said to ring out from nowhere, blamed on a tengu living inside the mountain. Legend warns that anyone who hears it should stay indoors or risk a curse.