Karuizawa Shiraito Falls is one of the most famous natural attractions in Karuizawa, Nagano Prefecture. The waterfall takes its name from the countless thin streams of water that resemble strands of white thread gently hanging from the rock face.
From the parking area, visitors can follow a pleasant walking path alongside the clear waters of the Yukawa River for approximately 150 meters. As the path curves gently through the forest, a beautiful waterfall gradually comes into view. The water spreads across a rock face approximately 70 meters wide, creating an impressive curtain-like scene.
One of the most fascinating characteristics of Shiraito Falls is that there is no conventional river flowing into the waterfall from upstream.
Instead, the water comes from underground streams originating from Mount Asama. Groundwater slowly moves through the volcanic layers beneath the mountain before emerging between the rocks and forming the waterfall.
Because the waterfall is supplied by groundwater rather than surface runoff, its flow remains relatively stable throughout the year. Even after rainfall, the water generally remains clear rather than becoming muddy, giving Shiraito Falls its remarkably pure and tranquil appearance.
The water eventually flows into the Yukawa River, which is one of the tributaries of the Chikuma River.
Shiraito Falls is located at an elevation of approximately 1,260 meters, while the vertical drop of the waterfall is only a little over 3 meters.
It is said that rain falling on Mount Asama takes approximately six years to travel underground before emerging as spring water. Along the rock face, visitors can closely observe water seeping out from between the layers of rock.
This gentle emergence of groundwater is quite different from the powerful flow associated with many large waterfalls. At Shiraito Falls, countless small streams emerge across a broad rock wall, creating a delicate and almost otherworldly landscape.
The waterfall is surrounded by dense woodland, and the contrast between the white water and the greenery of the forest creates an especially beautiful scene.
Spring brings fresh green leaves and the refreshing atmosphere of a mountain forest. In summer, sunlight filters through the trees and illuminates the flowing water. Autumn transforms the surrounding forest with brilliant foliage, while winter brings snow-covered scenery and a quiet, wintry atmosphere.
Because the appearance of the waterfall changes with the seasons, Shiraito Falls is a destination that can be enjoyed throughout the year.
The short walk from the parking area to the waterfall makes Shiraito Falls particularly accessible. The approximately 150-meter trail follows the Yukawa River and allows visitors to enjoy the sounds of flowing water and the fresh atmosphere of the forest along the way.
As the trail approaches the waterfall, the sound of the water gradually becomes more prominent. The sight of the countless streams cascading across the broad rock face provides a striking contrast to the surrounding forest.
The gentle scale of the waterfall, combined with its unusual width and delicate streams, gives Shiraito Falls a distinctive atmosphere unlike that of a powerful, single-column waterfall.
Karuizawa has long been known as a highland resort surrounded by forests and mountains, and Shiraito Falls represents the natural beauty that lies beyond the town’s historic streets and resort facilities.
The waterfall’s clear groundwater, volcanic geology, forest landscape and changing seasonal scenery come together to create one of the most memorable natural sights in the Karuizawa area.
For visitors exploring Karuizawa, a trip to Shiraito Falls offers an opportunity to experience the quieter side of the region and appreciate the relationship between Mount Asama, underground water and the surrounding forest.
Along the toll road “Shiraito Highland Way”
25 minutes from Karuizawa Station by Kusakaru Kotsu bus. 5 minutes walk from the bus stop.