Japan is full of natural wonders that often leave visitors amazed, and among them is a hidden gem in Hokkaido. The Shirogane Blue Pond in Biei captivates travelers with its otherworldly color, a sight that feels both magical and surreal. For many, a trip here is not just about seeing a pond, but about experiencing the mysterious beauty created by nature and time.
It is said that the mesmerizing sapphire-blue color of this pond is the result of a volcanic eruption that occurred in 1988.
In Biei, Japan, lies a breathtaking pond with a striking turquoise hue. Known as the Shirogane Blue Pond, it was created after the 1988 eruption of Mount Tokachi. Much like the glowing geothermal pools in Yellowstone, swimming here is impossible because the water is highly toxic to humans.
Although swimming is prohibited, the pond has become a popular tourist destination. Its crystal-clear, blue waters combined with the eerie sight of bare, lifeless birch trees rising from the surface make it resemble a scene straight out of a fairytale.
Originally, the pond was dug to prevent volcanic mudflows from affecting the town. However, over time, water from the Shirahige Waterfall flowed down into Biei’s river system, interacting with volcanic deposits. Mount Tokachi, the source of Shirogane’s hot springs, absorbed a portion of this hot water, which then became underground springs. With traces of aluminum leaching from the waterfall’s rocky walls, the pond’s unique blue shade was formed through the mixture of underground springs, volcanic activity, and natural minerals. In addition, sulfur and limestone are also present in the pond, bleaching the rocks beneath its surface.
Whether you come to admire its enchanting color, take photographs, or simply enjoy the calm atmosphere, the Shirogane Blue Pond offers a glimpse into Japan’s fascinating natural landscapes. It remains one of those rare places where science, history, and natural beauty come together to create an unforgettable experience.