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Oyamahirai Grand Festival
お山開き大祭（石鎚神社・成就社）
A mystical 10-day journey where the deities of Mt. Ishizuchi ascend the summit amidst the sounds of bells and white-clad pilgrims.
Schedule
July 1, 2027
Guide8 min read
The Oyamahirira Grand Festival (also known as the Summer Mountain Opening) is a vital ritual at Mt. Ishizuchi. It marks the sacred journey of the deities from the base of the mountain toward the summit.
Highlights
Traditional FestivalsHikingShintoism
About Oyamahirai Grand Festival
- Spiritual Experience: Witness the peak of energy at Mt. Ishizuchi as white-clad pilgrims gather.
- Women's Climbing: July 1 is a rare and precious opportunity for women to climb the sacred mountain.
- Traditional Culture: Experience the spirit of Japan through the traditional greetings of 'O-nobori-san' and 'O-kudari-san'.
- Sacred Rituals: Don't miss the unique evening ceremonies and the traditional Mochi-maki (rice cake throwing) at Jojusha.
Photo gallery
All photosWeather forecast
Mon
11/2
21°/17°
100%
Tue
11/3
20°/14°
4%
Wed
11/4
20°/14°
4%
Thu
11/5
20°/15°
70%
Fri
11/6
20°/13°
77%
Sat
11/7
15°/9°
0%
Sun
11/8
15°/9°
0%
Tips
Gear & Clothing
Full hiking gear and appropriate clothing are required for the ascent.
Etiquette
It is customary to greet fellow hikers as 'O-nobori-san' (climbers) or 'O-kudari-san' (descenders).
Climbing Requirements
Registration is required at Jojusha or Tsuchigoya Yorai-den. You must carry a Mountain Ticket and wear the designated ribbon on your left shoulder.
