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Yoro Valley, located in the center of Chiba prefecture's Boso peninsula, is a natural sightseeing spot that has easy access from the city and is a great day-trip destination. This valley has untouched natural features and shows different faces throughout all four seasons. It is highly popular for its hiking trails. There are many scenic points such as Kobundo-ato, a tunnel built nearly 150 years ago. Onsen are located nearby as well.
- Otaki-machi, Isumi-gun, Chiba
- Contact No.
- 10-min bus ride from Yorokeikoku Station
- Opening Hours / Holidays
- Free entry
Open all year round
- Official Website
- Time Required
- 90 min
- Admission fee
※ Some information is displayed in Japanese and machine-translated English, which may not be accurate.
For the latest information, please check the official website for each spot.
Kobundo-ato, a Tunnel Built 140 Years Ago
In order to develop the agriculture in the area, this tunnel was built 140 years ago as an abbreviation of Kaburai River, which branches off Yoro River. It was named Kobundo (Kobun-cave) because it flowed through an area that was related to the Kobun emperor and was widely known as a scenic point as well as a fishing spot; however, since 1979 the entrance has been damaged.
Kannon-bashi (bridge) and Rikkoku-ji (temple)
The red bridge near Prefectural road 81 was built across the Yoro River in order to reach Shusse Kannon. About a 15-minute walk after crossing the bridge will bring you to Yorozan Rikkoku-ji, where Shusse Kannon stands. This temple supposedly has powers to bring not only success ("shusse") but also good fortune and good encounters.
This is one of the largest of the famous waterfalls in the Boso peninsula and is a total of 100-meter in length with a 30-meter fall. It is a feminine waterfall, in which the clear water slides down quietly like silk over smooth layers of rocks. It has a beautiful harmony with the vegetation on both sides and attracts a lot of families during the summer.
Umegase Valley Hiking Trail
The area surrounding Mt. Daifukuyama, which stands overlooking Yoro Valley, is also very popular as a hiking spot. During spring, flowers such as iwatsutsuji (type of azalea) and wisteria bloom; during summer, you can refresh by walking through the river; autumn brings colored leaves and icicles form in winter. It is also known to be where autumn leaves change color the latest within Honshu.
Yoro Valley Tourist Center
This rest area is located at the crossing of Yoro River. Aside from providing information regarding Yoro Valley tourism, the center also sells local specialties and bento (lunch boxes), and also has restaurants that open on holidays. The specialties shitake (Japanese mushroom) croquette and futomaki sushi with fun designs are especially popular among both locals and tourists.