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Oirase Stream
奥入瀬渓流 · Towada, Aomori
Fourteen kilometres of moss and waterfalls: a poem walked upstream through virgin forest
Know before you go
- Taboos: playing music loudly, and standing in front of waterfalls for ages for photos and blocking the path.
This article is Not yet verified. Please check official announcements for prices, opening hours and dates.
Why it’s popular
The stream path from Nenokuchi on Lake Towada to Yakeyama is about 14 km and takes 3–5 hours on foot, and getting around Aomori is inconvenient in the first place, which naturally filters out photo-op tour groups; most visitors stay by Lake Towada, and few go deep along the stream. It's a hiking secret 'known only to those in the know'.
Culture
Culture & customs
Background
Oirase is a special protection zone of Towada-Hachimantai National Park; its waterfalls, such as Hōryō Falls and Ashura-no-nagare, have been sketched by writers and painters since the Meiji era. The name 'Oirase' is linked to an Ainu word for 'where the waters flow in'.
Local customs
- The stream path is narrow, so keep left and give way to people coming the other way
- don't stray off the path onto the moss and forest floor
- don't throw things into the stream or fish
- take all rubbish with you.
Religion & beliefs
No particular religion. Towada Shrine (Shinto) on the shore of Lake Towada is a centre of mountain worship — be respectful if you stop to pray.
Etiquette
Etiquette & taboos
Don’t DON'T
Taboos: playing music loudly, and standing in front of waterfalls for ages for photos and blocking the path.
Locals appreciate DO
Guides and minshuku owners appreciate visitors who 'travel light, walk slowly and look closely'
Plan your visit
Practical info
| Best time | Fresh green (late May – June) and autumn leaves (mid-to-late October) are best |
|---|---|
| Getting there | From JR Aomori or Hachinohe Station take a JR bus to 'Nenokuchi' or the 'Oirase Keiryūkan' |
Travel tips
- Fresh green (late May – June) and autumn leaves (mid-to-late October) are best
- access: from JR Aomori or Hachinohe Station take a JR bus to 'Nenokuchi' or the 'Oirase Keiryūkan'
- you can use the shuttle buses to walk in sections
- rain gear can be rented at the Keiryūkan
- stay a night on the shore of Lake Towada.
Eat nearby
What to eat nearby
There's no food along the stream — eat around Towada
Must-try
- Bara-yaki
- Horse-meat hotpot
- Apple desserts / apple juice
Bara-yaki (Towada's stir-fried beef belly and onion), horse-meat hotpot (at licensed restaurants), apple desserts / apple juice, wild-vegetable soba, lakeside grilled fish
| Where to eat | Simple meals at the Yasumiya / Nenokuchi shops on Lake Towada, restaurants in Towada city, Hoshino Resorts meals (for guests) |
|---|---|
| Dining etiquette | Leave no trace in the national park; no picnics or fires by the stream (outside designated areas); don't pick wild vegetables |
| Typical price per person | JPY 1,800–3,000 ≈ CNY 81–135 |
| Tips | On the hiking route, bring rice balls to eat at the Yasumiya rest area; bara-yaki with rice is the proper Towada meal. |
Prices are typical rates as of October 2026, not exact quotes; CNY equivalents are approximate where exchange rates fluctuate.
Syced · CC0
Photos
Photos
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z tanuki · CC BY 3.0
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z tanuki · CC BY 3.0
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Yoshio Kohara · CC BY 3.0
Sources & verification notes
In-depth research on Japanese sights (2026-10-15). Sources: stable public knowledge (no directly verifiable links were kept from this research).
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