Oshino Hakkai, located in Yamanashi Prefecture, is one of the cultural assets that make up the UNESCO World Heritage Site “Mt. Fuji: Sacred Place and Source of Artistic Inspiration.”
This serene village is home to eight crystal-clear ponds fed by the underground spring water of Mt. Fuji. Each pond is celebrated for its exceptional clarity and purity, drawing visitors from across Japan to experience its legendary waters.
Every pond carries with it ancient legends and folklore, offering travelers a chance to immerse themselves not only in nature but also in the history and culture of the region.
In recent years, Oshino Hakkai has become a must-visit destination for international travelers, bustling with activity on weekends and national holidays.
In this feature, we’ll take you on a journey through the mystical ponds of Oshino Hakkai, exploring the legends surrounding each spring, their scenic highlights, and recommended nearby attractions.
Embark on an unforgettable trip to the mystical waters of Oshino Hakkai and discover why this sacred spot continues to captivate visitors from around the world.
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What Is Oshino Hakkai? | Mysterious Spring Ponds Born from Mt. Fuji’s Sacred Waters
Located in Oshino Village, Minamitsuru District, Yamanashi, Oshino Hakkai refers to eight sacred spring ponds created by the underground water of Mt. Fuji. Today, it is one of the most popular tourist destinations in Japan, drawing visitors from around the world.
Around 6,000 years ago, this area was covered by a large lake called Lake Utsuko. However, when Mt. Fuji erupted during the Enryaku Era, lava flows filled the basin, the lake dried up, and the unique landscape we see today was formed.
Over centuries, snowmelt from Mt. Fuji filtered through layers of volcanic rock, creating ponds with exceptionally pure and transparent water. These became the springs now known as Oshino Hakkai.
Recognized as one of the “100 Best Waters of Japan,” the clarity of these sacred ponds continues to fascinate travelers. Each pond carries its own legends and historical significance, making Oshino Hakkai not only a natural wonder but also a power spot for spiritual energy.
Experience for yourself the mystical beauty of Oshino Hakkai, where nature and history intertwine to create one of Japan’s most enchanting water sanctuaries.
Why Is It Called “Oshino Hakkai” (Eight Seas) Instead of “Eight Ponds”? The exact reason remains unclear, but there are several beliefs: ・One theory suggests that, despite being ponds, their beauty was thought to rival that of the sea, hence the name “Hakkai” (Eight Seas). ・Historically, Oshino Hakkai served as a purification site for pilgrims before they began climbing Mt. Fuji. ・Local tradition holds that dragon deities (Ryujin) inhabit each pond, making them too sacred to be called simple “ponds.” This reverence is believed to have given rise to the distinguished name “Hakkai.”
Exploring the Legends of Oshino Hakkai
The First Sacred Pond: Deguchi-ike
Among the eight springs of Oshino Hakkai, Deguchi-ike is the largest, spanning about 1,467㎡. Unlike the other seven ponds, it is located slightly apart, surrounded by tranquility and a deeply spiritual atmosphere.
In the past, the spring water of Deguchi-ike was revered as sacred water (Reisui). Before climbing Mt. Fuji, pilgrims would come here to perform misogi (ritual purification) and pray for a safe journey. It is said that climbers cleansed their bodies in its waters and carried some home to ensure protection and blessings.
Standing just above the pond is the Deguchi Inari Shrine, overlooking the spring. Long ago, this region was home to many horses, raised for farming and transportation. To safeguard their health and well-being, the villagers enshrined an Inari deity associated with horses, establishing this sacred shrine.
Today, Deguchi-ike offers visitors a chance to feel both the sanctity of nature and the enduring traditions of faith. Its serene setting makes it an ideal starting point for your journey through Oshino Hakkai.
U.S
Writer at JAPANOPIA Editorial Team
In my 30s, originally from Kyoto and now based in the Kanto region, I have been passionate about traveling both within Japan and abroad since my student days. I love discovering hidden local charms while strolling through cities and towns.
A true nature enthusiast, I’m especially drawn to the sea and mountains—and I’ve even climbed Mt. Fuji! I also enjoy joining local events and festivals, valuing every opportunity to connect with Japanese culture and traditions.
Through my writing, I aim to uncover the deeper appeal of Japan and share insights that make every journey more fulfilling—whether it’s sightseeing spots, gourmet experiences, or outdoor activities.
By highlighting the many attractions of Yamanashi Prefecture, I propose travel ideas where visitors can also experience Japan’s unique spirit of hospitality (“omotenashi”).
