Guide
The Sanbon Sugi is a rare and magnificent Japanese cedar located near the approach to Oiwa-yama Shrine in Hitachi City, Ibaraki Prefecture. Its most striking feature is the three massive trunks that branch out in different directions at approximately 3 meters above the ground, creating an overwhelming presence that serves as a symbol of nature's life force. The tree is estimated to be around 500 years old, with a trunk circumference of 8.4 meters and a height reaching 40 meters. While there are various theories regarding whether this shape resulted from a single tree splitting or three trees fusing together, it remains a highly valued masterpiece of natural architecture.
The area surrounding Mt. Oiwa has a long history, recorded in the ancient 'Hitachi no Kuni Fudoki' as a sacred landscape. The region has been a site of spiritual significance since the Jomon period, with archaeological remains of ritual sites nearby. Throughout the ancient and medieval eras, it served as a place for ascetic training (Shugendo). Oiwa-yama Shrine is said to be home to 188 different deities, deeply connecting the site to Japan's traditional nature worship. The Sanbon Sugi has been protected and revered by local communities and pilgrims for generations, embodying the Japanese spiritual culture that honors the divinity residing within nature.
The primary highlight is the breathtaking sight of the three massive trunks. The way the three branches rise powerfully toward the sky from just a few meters above the ground creates a profound impact on all who see it. As a designated Natural Monument of Ibaraki Prefecture (designated in 1968), the tree holds immense historical and academic importance. Visitors can feel the breath of life from a tree that has survived for over 500 years, surrounded by the serene atmosphere of the deep forest.
While the Sanbon Sugi's powerful presence can be enjoyed year-round, the scenery changes beautifully with the seasons. The lush greenery of spring and the vibrant colors of autumn create a harmonious and stunning landscape with the surrounding forest. We highly recommend visiting in the early morning; the forest air is exceptionally clear and crisp during this time, enhancing the sacred atmosphere and providing a quiet environment to connect with this ancient giant.
Visitors can enjoy 'Shinrin-yoku' (forest bathing) to observe the exquisite forms of nature, often combined with a visit to the nearby Oiwa-yama Shrine. Witnessing the overwhelming scale of the Sanbon Sugi fosters a deep sense of awe and respect for the natural world. The area also features well-maintained hiking trails, allowing you to experience the historical background and natural wonders through all your senses.
The area around Mt. Oiwa is dotted with historical sites and natural landmarks. For instance, the Satsu Shrine Okumiya is a historical site rediscovered through topographical surveys. Mt. Oiwa itself is known as a powerful spiritual site, and visitors can hike toward the summit (elevation 530m), where various monuments related to Mito Mitsukuni and Mito Sadanobu can be found.
As you will be moving through a natural environment, please keep the following in mind: