What is Yōrō Keikoku?
Yōrō Keikoku (Yōrō Gorge), located in Otaki Town, Isumi District (Isumi-gun), Chiba Prefecture, is a hidden gem known as one of the most scenic spots on the Bōsō Peninsula.
Despite being only about two hours from central Tokyo, this nature-rich destination offers beautiful seasonal scenery, with opportunities for hiking and hot springs.
In particular, the autumn foliage is among the most spectacular in the Kanto region and attracts many visitors.
This article will introduce Yōrō Keikoku’s highlights, how to enjoy it, and access information in detail!

Highlights of Yōrō Keikoku and How to Enjoy It
1. Spectacular Hiking Trails
Yōrō Keikoku offers several hiking courses suitable for beginners through experienced hikers.
Many routes follow the river, pass waterfalls, and go through forests, making them healing spots full of refreshing negative ions.
Recommended hiking courses:
- “Awamata Falls area waterfall-walking trail: approx. 4 km”
- “Daifukuyama / Umegase course: approx. 12 km”
Each course features beautiful scenery and unusual rock formations, making them perfect for photography.
2. Dramatic Awamata Falls
The highlight of Yōrō Keikoku is Awamata Falls (Awamata-no-taki).
With a drop of about 30 m and a length of roughly 100 m, it is the largest waterfall in Chiba Prefecture and is sometimes called the “Niagara of Bōsō.”
Highlights:
- A walkway has been developed that lets you get close to the waterfall’s plunge pool
- Especially beautiful during the autumn foliage season
- After rain, when the water volume is high, the falls are even more powerful!
There are benches nearby, so it’s also recommended to relax and enjoy the view of the falls at a leisurely pace.
3. Autumn Leaves and Spring Fresh Greenery
Yōrō Keikoku is a particularly famous spot for autumn foliage.
From late November to early December, maples and other trees turn vivid red and yellow, coloring the gorge.
Best spots for autumn leaves:
- Awamata Falls
- Ozawamata Falls
- Kengaikyō (Kengaikyo)
Also, the spring fresh-green season (April–May) is extremely beautiful — the gorge covered in fresh green is perfect for a refreshing outing.
4. Relax at Yōrō Keikoku’s Hot Springs
Yōrō Keikoku features a natural hot spring known locally as “kuroyu” (black water), which is rare in the Kanto region.
This hot spring is rich in iron and said to be great for skin health and relieving fatigue.
Recommended hot springs:
- Takimien Kenkōmura “Goriyaku no Yu” (with open-air baths)
- Yōrō Onsen hidden-inn “Takimien” (bathing while viewing a waterfall)
- Keikoku Bettei “Hitotoki” (enjoy a private hot spring in the great outdoors)
There are many day-trip hot spring facilities, so it’s a great idea to soak and relax after hiking!
5. Local Food Around Yōrō Keikoku
After hiking or soaking in the hot springs, be sure to enjoy the local delicious cuisine!
Recommended foods:
- Fresh local river fish (salt-grilled ayu and yamame)
- Chiba specialty “Bōsō soba” (full-flavored and firm)
- Homemade game dishes (wild boar hot pot, venison dishes)
- Seasonal fruits (strawberry picking, blueberry picking also available!)
There are eateries along the gorge, so dining while feeling immersed in nature is exceptional.

Access to Yōrō Keikoku
By Train (Public Transportation)
- From Tokyo Station:
- JR Uchibō Line to Goi Station → Kominato Railway to Yōrō Keikoku Station (approx. 2 hours)
- From Chiba Station:
- JR Uchibō Line to Goi Station → Kominato Railway to Yōrō Keikoku Station (approx. 1 hour 30 minutes)
By Car (Recommended!)
- From the Tokyo area:
- Metropolitan Expressway Bayshore Route → Tokyo Bay Aqua-Line → Tateyama Expressway to Ichihara IC → about 30 minutes
- From the Chiba area:
- Tateyama Expressway to Ichihara IC → about 30 minutes
Parking information:
- There are several free and paid parking lots nearby
- Because it gets crowded during the autumn foliage season, arriving early is recommended!

Useful Information for Travelers
Wi‑Fi and Facilities
- Free Wi‑Fi is available around Yōrō Keikoku Station
- Tourist information centers offer brochures in English and Chinese
- Public restrooms are available near Yōrō Keikoku Station and the parking areas
Language Support
- There is a tourist information center with English support
- Some accommodations offer multilingual service

Summary and Frequently Asked Questions
Summary
Yōrō Keikoku is a hidden gem in the Kanto region where you can enjoy hiking, autumn leaves, hot springs, and local food.
With good access from Tokyo, it’s perfect for a day trip!
Frequently Asked Questions
Q: What is the best season to visit Yōrō Keikoku?
A: The autumn foliage season (November–December) and the spring fresh-green season (April–May) are recommended!
Q: Is Yōrō Keikoku suitable for families with children?
A: Yes! Many hiking trails are relatively easy to walk and suitable for families.
Q: Are pets allowed?
A: Pets are allowed on some hiking courses, but many hot spring facilities do not permit pets.
If you want to fully enjoy great nature near Tokyo, this is a perfect spot — please consider visiting!