The temple was originally called Onzan-ji, literally 'Mountain of Gratitude', to honor Kobo Daishi's mother.
It is considered one of the 'Nansho' (difficult locations) due to its remote, elevated position.
The temple precincts house a statue dedicated to Kobo Daishi’s mother, Joto-zen-ni, marking it as a rare pilgrimage site dedicated to maternal love.
The area surrounding the temple is known for historical stone markers that guide pilgrims along the ancient mountain paths.
Traditional Higan-zakura cherry trees on the property typically peak in early spring, ahead of the main blooming season in Tokushima.
Onzanji Temple is the 18th stop on the Shikoku 88 Temple Pilgrimage, located on a mountainside in Komatsushima. It is historically linked to Kobo Daishi, who is said to have founded the temple after his mother visited him there. The site features a statue of the priest holding his mother, reflecting the temple's association with maternal devotion. The grounds contain a 'higan-zakura' cherry tree, which blooms earlier than many other varieties in the region. Visitors must climb a steep stone staircase to reach the main temple complex. The temple is noted for the 'Henro-goroshi' or 'pilgrim killer' nickname given to the challenging approach route in the past. It remains an active site for practitioners of Shingon Buddhism.
The stone staircase leading up to the main hall, framed by the surrounding cedar trees.
Wear sturdy, broken-in hiking footwear, as the approach involves steep inclines and uneven stone steps.
Carry trekking poles if you are arriving on foot, as the path from the base is physically demanding.
Bring a personal stamp book (nōkyōchō) if you wish to collect temple seals as part of the pilgrimage tradition.
Do not attempt to hike the ascent in casual footwear or open-toed sandals.
Maintain silence, bow at the entrance gate, and do not photograph the interior of the main hall.
