Oirase Stream Trail
Nature WalkTohoku(Aomori)
EasyDistance
14 km
Elevation Gain
200m
Max Elevation
400m
Duration
4.5h
Scenic streamside walk in Aomori alongside waterfalls and moss-covered rocks.
The Oirase Stream Trail follows a pristine mountain stream for 14 kilometers through a lush beech and cedar forest in Aomori Prefecture, connecting Yakeyama to Lake Towada. The flat, well-maintained path passes numerous waterfalls, cascades, and moss-covered boulders, creating one of Japan's most photographed nature walks. Autumn foliage transforms the corridor into a tunnel of gold, red, and orange.
At a Glance
- Difficulty
- easy
- Distance
- 14 km
- Elevation Gain
- 200 m
- Duration
- 4.5 hours
- Best Season
- May to November, autumn foliage peak in October
- Trail Type
- nature walk
Best Season
May to November, autumn foliage peak in October
Highlights
Fourteen named waterfalls along the trail; Crystal-clear mountain stream; Moss-covered boulders and ancient trees; Spectacular autumn foliage; Choshi Otaki, the largest waterfall
Access
Take the JR Tohoku Shinkansen to Hachinohe Station, then a JR bus to Yakeyama or Towada-ko (about 2 hours). Buses run along the stream road with multiple stops. By car, use the Tohoku Expressway to Kosaka IC.
Warnings & Safety
The trail runs alongside a road that can have traffic, especially in autumn. Bears are present in the area—carry a bell. Some sections can be slippery after rain. The full 14km walk is mostly flat but requires planning for return transport. Winter closes most facilities.
Frequently Asked Questions
How difficult is Oirase Stream Trail?
Oirase Stream Trail is rated as easy difficulty.
How long is Oirase Stream Trail?
Oirase Stream Trail is 14 km long.
What is the elevation gain on Oirase Stream Trail?
The elevation gain on Oirase Stream Trail is 200 meters.
How long does it take to hike Oirase Stream Trail?
Hiking Oirase Stream Trail typically takes about 4.5 hours.
When is the best season to hike Oirase Stream Trail?
The best season to hike Oirase Stream Trail is May to November, autumn foliage peak in October.
Where is the trailhead for Oirase Stream Trail?
Oirase Stream Trail is located in Aomori, Tohoku region of Japan.
What type of trail is Oirase Stream Trail?
Oirase Stream Trail is a nature_walk trail.
Are there any warnings for Oirase Stream Trail?
Warnings for Oirase Stream Trail: The trail runs alongside a road that can have traffic, especially in autumn. Bears are present in the area—carry a bell. Some sections can be slippery after rain. The full 14km walk is mostly flat but requires planning for return transport. Winter closes most facilities..
How do I get to Oirase Stream Trail?
Access information for Oirase Stream Trail: Take the JR Tohoku Shinkansen to Hachinohe Station, then a JR bus to Yakeyama or Towada-ko (about 2 hours). Buses run along the stream road with multiple stops. By car, use the Tohoku Expressway to Kosaka IC..
What is the maximum elevation on Oirase Stream Trail?
The maximum elevation on Oirase Stream Trail is 400 meters.
Is Oirase Stream Trail suitable for beginners?
Oirase Stream Trail is rated easy, making it accessible for hikers of that level.
Do I need special equipment for Oirase Stream Trail?
For Oirase Stream Trail, proper hiking shoes and weather-appropriate clothing are recommended. Check warnings: The trail runs alongside a road that can have traffic, especially in autumn. Bears are present in the area—carry a bell. Some sections can be slippery after rain. The full 14km walk is mostly flat but requires planning for return transport. Winter closes most facilities..
What are the highlights of Oirase Stream Trail?
Highlights of Oirase Stream Trail include: Fourteen named waterfalls along the trail; Crystal-clear mountain stream; Moss-covered boulders and ancient trees; Spectacular autumn foliage; Choshi Otaki, the largest waterfall.
Is Oirase Stream Trail accessible by public transport?
Access to Oirase Stream Trail: Take the JR Tohoku Shinkansen to Hachinohe Station, then a JR bus to Yakeyama or Towada-ko (about 2 hours). Buses run along the stream road with multiple stops. By car, use the Tohoku Expressway to Kosaka IC..
Can I hike Oirase Stream Trail in winter?
The best season for Oirase Stream Trail is May to November, autumn foliage peak in October. Check conditions before hiking in winter.

