The Oirase Stream (also Oirase Gorge) offers popular woodland hiking trails up to 14km long, from a starting point at Lake Towada's Nenokuchi..
Lake Towada is a scenic lake situated in the Tohoku region, between Aomori and Akita. The lake was formed over 2000 years ago, as a result of frequent volcanic activities that created the caldera which is Lake Towada today. It is the largest crater lake within the main Honshu island of Japan. Part of the Towada-Hachimantai National Park, Lake Towada is one of the region's most popular attractions due to its proximity to scenic sites such as Oirase Stream and Mount Hakkoda.
The area around Lake Towada is best known for its magnificent autumn colors, with visitors from across the country flocking to this hidden gem in the north. You can enjoy a scenic boat ride on board the Lake Towada Excursion boat during spring, summer, and autumn. For the more adventurous, canoe boats are available to rent.
Apart from the lake itself, walking trails along Oirase Stream are also popular options for both sightseers and experienced hikers. Many visit Oirase Stream during autumn to take in the sight of the mountain stream framed by beautiful golden-hued foliage. However, the area is also a good option for those visiting in summer or spring, where there are fewer crowds. Take caution if visiting near winter, as the trails might be slippery due to ice or rain. The entire trail takes approximately 2.5 hours to complete.