Tenporin Cave
Tenporin Cave is a stone cave regarded as the ultimate ascetic training site of Hakusan Shugendo. It is located on the southeastern cliff directly below the summit of Mt. Gozen on Mt. Hakusan, at an elevation of around 2,650 meters, within the administrative boundaries of Shirakawa Village. Ascending from the Hirase route toward the Murodo and reaching the approach to Murodo-daira at approximately 2,450 meters, the cave can be identified beneath Mt. Gozen on the right-hand side.
The cave is traditionally said to be where Taicho, the founder of Mt. Hakusan, secluded himself in ascetic practice. A depiction of Taicho practicing in this cave appears in the Hakusan Mandala dated 1789 (held by Nomi City and designated as a cultural property of Ishikawa Prefecture).
The cave is situated at the headwaters of Tenporin Valley, one of the tributary valleys of the Oshirakawa River, and opens toward the Hida side. It extends approximately 11 meters from north to south and about 4 meters in depth. The ceiling height reaches about 3.5 meters at its highest point and narrows to about 1 meter toward the back.
Hakusan Mandala (1789, held by Nomi City)
Of the two peaks depicted in the mandala, the peak on the right is Mt. Gozen. On its right mid-slope, Tenporin Cave—shown as “Asahi no Iwakutsu”—is illustrated with Taicho engaged in ascetic practice.
Until recent years, a bronze statue of the Eleven-Faced Kannon was enshrined at the back of the cave, but it is now preserved in the treasure museum of Shirayamahime Shrine. This statue is believed to date to the 12th century and, in accordance with the theory of honji suijaku, was likely placed in the cave as a sacred object representing the “womb” of the sacred mountain. Tenporin Cave can thus be regarded as the spiritual origin of Hakusan worship, a sacred site of Hakusan Shugendo that has been visited by numerous ascetics since ancient times.