Guida
Kamuiwakka Falls is a truly special location in the heart of Shiretoko, bearing the name 'Kamuiwakka,' which means 'God's Water' in the Ainu language. Located deep within the wilderness, approximately 10km past the forest roads leading from Shiretoko Goko (Five Lakes), this site offers a one-of-a-kind experience. The most striking feature is that the river itself is a hot spring. As you hike upstream, you can bathe in the warm waters. The temperature starts at approximately 25°C at the beginning and rises to about 35–38°C near the final destination, 'Waterfall No. 4.' It is a representative adventure spot of Shiretoko where you can feel the raw energy of nature with your entire body.
This area has been cherished by the Ainu people since ancient times as 'God's Water.' While visitors were once able to enjoy the hot springs freely at any pool, regulations were introduced following the designation of the area as a World Heritage site to ensure safety and environmental conservation. Today, it is operated as a strictly reservation-only activity to allow people to enjoy nature safely and sustainably. Furthermore, the area has a dynamic geological history; the nearby Mt. Io (Sulfur Mountain) was once used for sulfur mining and continues to show active volcanic activity, showcasing the shifting power of the earth.
The highlight of Kamuiwakka Falls is the process of trekking upstream. The experience centers on feeling the changing water temperatures and navigating through rocky terrain. Near the falls, you can witness a phenomenon where the water surface appears emerald green due to chemical reactions from the falling water. Additionally, about 1km downstream, the Kamuiwakka River plunges directly into the Sea of Okhotsk at 'Kamuiwakka Falls,' which has a drop of approximately 30 meters. Since this waterfall is difficult to approach by land, its magnificent scale is best viewed from a sightseeing boat.
The river trekking activities are primarily held during the summer months. Because the availability and rules can change based on river temperature and environmental conditions, it is highly recommended to check the latest information in advance. During the hot summer months, the contrast between the warm river flow and the cool, refreshing air of the primeval forest provides an incredibly pleasant experience. Please note that shuttle bus operations and vehicle restrictions change depending on the season, so planning your visit accordingly is essential.
The most popular activity is the 'Kamuiwakka River Trekking.' This adventure involves hiking upstream while being showered by warm water splashes. The journey includes the process of the water temperature gradually increasing and navigating through natural rock formations. This is not just a sightseeing tour, but an immersive experience that makes you feel like a part of nature itself. For your safety, wearing a helmet is mandatory during this activity.
The nearby Shiretoko Five Lakes (Shiretoko Goko) is another iconic scenic spot in Shiretoko National Park. At the lakes, you can enjoy walking on elevated wooden paths or guided treks through the forest. Additionally, the hiking trail to Mt. Io (Sulfur Mountain), which stands at 1,652m, is close by, offering views of active volcanic vapors and remnants of former sulfur mining. Combining these areas allows for a multi-faceted exploration of Shiretoko's rich natural environment.
When participating in the river trekking activity, wear clothes that are comfortable for movement and can easily get wet. Since the rocky terrain can be slippery, renting specialized water shoes is highly recommended. A helmet is mandatory for safety. To protect the environment and ensure your safety, please refrain from entering restricted areas or violating local rules. During periods of vehicle restrictions, you will be required to use the designated shuttle bus.