The pond sits at an elevation of 2,115 meters, making it one of the highest natural lakes in Japan.
The surrounding 'Moss Forest' (Koke no Mori) is recognized as a 'Valuable Moss Forest' by the Japan Bryological Society.
The lake's water remains relatively cool throughout the year due to its high altitude and shaded forest cover.
Shirakoma Pond is fed by groundwater and remains stable regardless of minor rainfall fluctuations.
The site acts as a major trailhead for the ascent to Mount Nakadake and Mount Kometsuga.
Shirakoma Pond is a high-altitude natural lake situated at 2,115 meters above sea level within the Yatsugatake-Chushin Kogen Quasi-National Park. It is distinguished by its surrounding primeval forest, which is carpeted with a dense layer of over 480 identified species of moss. The pond is volcanic in origin, formed by the eruption of Maruyama. A well-maintained wooden boardwalk and dirt trail circle the perimeter of the pond, connecting to the broader Kitayatsugatake hiking trail network. The water is noted for its high transparency and reflection of the surrounding coniferous trees. It serves as a gateway to exploring the higher peaks of the Northern Yatsugatake mountains.
The wooden jetty near the pond entrance provides the clearest view of the water and surrounding forest.
Wear sturdy, waterproof hiking boots as the forest floor remains damp and slippery even in dry weather.
Bring a light jacket as temperatures at this elevation are significantly lower than in the surrounding valleys.
Visit the Shirakoma-so mountain hut located near the water for trail maps and basic amenities.
Attempting to walk the forest trails in sneakers or open-toed footwear; avoid visiting during peak fog hours if you lack orientation skills.
The access road (Venus Line) is closed during winter months due to heavy snowfall; typically inaccessible from late November to late April.
Stay strictly on designated boardwalks to protect the delicate moss ecosystem from trampling.
