A tranquil Onsen-kyo nestled in the valley where the Kinugawa and Ojika Rivers meet. Since the 18th century when the spa was discovered， Kawaji has prospered as a post station and a therapeutic spa. The simple alkaline hot spring is an effective treatment for neuralgia， rheumatism and particularly for injuries. The nearby nature trail leading to the scenic “Ryuokyo gorge” offers a lovely way to take in the floral scents and the sounds of local streams.

This day spa is located in Kawaji Onsen District in Nikko City， Tochigi Prefecture. Its simple weakly alkaline hot springs have earned it the nickname Bihada no Yu for supposedly giving people beautiful skin. It is also said to help with conditions such as nerve and joint pain. The facility features indoor baths and mixed gender open-air baths. The spa， which offers great views of the scenery of the Ojika River， is patronized mostly by locals but also by many tourists."

This dam is located along Prefectural Route 23 in Kawaji， Kawajionsen， Nikko City. Completed in 1983， the dam was built along the Kinu River for purposes such as flood control and irrigation. It is the fourth tallest concrete arch dam in Japan. It is considerable force at the time of drainage. At the Kawaji dam museum close to the damsite， it displays the topography model around the dam， a dam model， a construction tool. It has a dining room， the tea room."

One of the most popular photo spots along the Ryuo Gorge hiking trail Musasabi Bridge is located along the mid-section of the Ryuo Gorge hiking trail in Nikko National Park, and is one of the suspension bridges connecting both sides of the gorge. The geology here belongs to “Hakuryu Gorge,” with the valley below the bridge formed of rhyolite. On both sides lies a well-preserved wetland ecosystem, where skunk cabbage blooms in spring, and in summer visitors can observe the rare forest green tree frog. Compared with Nijimi Bridge at the starting point, the area around Musasabi Bridge feels quieter and closer to nature. Standing on the bridge, away from the crowds, you can listen to the murmuring flow of the Kinugawa River and the rustling of leaves in the breeze—a perfect spot to calm your mind during the hike. Continuing upward from here, you can reach the Seiryu Gorge section, known for its unique rock formations, and enjoy many famous geological sights. It is a hiking journey that combines nature, geology, and tranquil moments.

Volcanic rocks， having been eroded by the flow of the Kinugawa River， produce a dynamic vista resembling a dragon wriggling around. You can see this 3-kilometre vista between Kawaji Onsen and Kinugawa Onsen. Many tourists come to see the stunning autumn leaves from late October to early November. The 7-kilometre nature trail leading to Kawaji Onsen is highly recommended for a nice walk.