Oirase Stream, a 14-kilometer mountain stream flowing from Lake Towada in Aomori Prefecture, is a popular Japanese scenic area where visitors can enjoy natural beauty throughout the year. Covered with mossy rocks and numerous waterfalls, this picturesque valley represents one of the most beautiful parts of Towada-Hachimantai National Park. The well-maintained walking trail makes it easy to explore, even for first-time visitors, while the tunnel of trees along the stream changes its appearance with each season, letting travelers experience both tranquility and fresh mountain air.
Visitors can also enjoy nearby attractions such as Lake Towada and local hot springs, making Oirase Stream a perfect destination to experience the natural and cultural beauty of Tohoku.
Oirase Stream Highlights and Scenic Spots
Senjo-no-Taki Falls and the Mossy Corridor
Senjo-no-Taki, or Thousand Threads Falls, is one of the most popular photo spots along the Oirase Stream walking route. Delicate streams of water spread over the rock surface like fine silk threads, creating an elegant visual effect. A lush corridor of moss surrounds the area, and when sunlight filters through the trees, the scene takes on a serene and almost dreamlike quality. Walking here while listening to the gentle sound of water offers a moment of calm that immerses you in the depth of nature.
Kumoi Falls and Its Dynamic Flow
Standing about 20 meters tall, Kumoi Falls is one of the most dynamic and famous waterfalls along Oirase Stream in Japan. The waterfall cascades down a rocky cliff in three stages, forming a mist that blends harmoniously with the surrounding greenery. A wooden viewing deck has been installed in front of the falls, where many visitors stop to take photographs. From this close distance, the sound and spray of the water let you feel the natural energy of the stream.
Ishigedo Rest Area Walking Route
Ishigedo Rest Area serves as a convenient starting point for exploring Oirase Stream in Aomori, with a shop and rest facilities available for travelers. From here, an easy trail leads toward the Nenokuchi area, offering continuous views of waterfalls and clear water along the way. The path is gentle and well maintained, with benches placed at intervals, making it suitable for families. Even with limited time, visitors can enjoy a condensed experience of Oirase’s most beautiful scenery.
Lake Towada and Hakkoda: Nature and Hot Springs
The region surrounding Oirase Stream offers abundant natural and cultural attractions. Upstream lies Lake Towada, a stunning caldera lake in northern Japan formed by volcanic activity, whose deep blue surface reflects the changing colors of the seasons. Sightseeing boats and observation decks around the lakeshore allow visitors to appreciate its calm scenery, making it ideal for strolls and photography.
Discover more about sightseeing cruises on Lake Towada at the Towadako Pleasure Boat Official Website
Extending your journey toward Mount Hakkōda, you can take a ropeway to an elevation of about 1,300 meters for sweeping panoramic views. Nearby, traditional hot spring resorts such as Sukayu Onsen and Yachi Onsen provide relaxing retreats after a day of hiking. With its combination of mountains, hot springs, and lakes, this area perfectly complements an Oirase Stream excursion.
Oirase Stream Access Guide by Bus
