Verified [Verified] denotes information that has been published with confirmation of its owing parties.
Mikawa Mu Valley Underground Kingdom
An adventure theme park that explores the mysteries of an ancient civilization deep underground.
A theme park built on the former site of a tungsten mine in the mountains of Iwakuni, Yamaguchi Prefecture, along the Nekasa River. Visitors can enjoy an adventure through a space said to have been discovered during the mine’s operation, stretching for Approx. 1 km. The underground space stays at Approx. 18°C year-round, cool in summer and warm in winter.
Inside the Underground Kingdom, giant murals and stone statues are scattered throughout. All of them are inspired by an ancient civilization, creating a mysterious atmosphere unique to the underground setting. The illuminated underground lake and underground waterfall, glowing with a dreamlike beauty, are also not to be missed. You can also take on a puzzle-solving attraction where you visit each point and aim to escape from the Underground Kingdom.
The gold panning and gemstone hunting experience area near the entrance to the Underground Kingdom is especially popular with children. You can take home the gold and gemstones you find within the time limit. There is also a restaurant known for its curry topped with pyramid-shaped rice that looks great in photos, as well as bathing facilities and accommodations where you can refresh yourself after a day of fun.
-
A theme park built on a former mine site in the mountains.
-
Giant murals and stone statues are scattered throughout the Approx. 1 km-long space.
-
You can try a puzzle-solving game set in the Underground Kingdom.
-
Gold panning and gemstone hunting are also popular.
-
The park also has a restaurant, bathing facilities, and accommodations.
Photos
-
A mysterious space unfolds in the darkness
-
Giant murals and stone statues are scattered throughout
Official FAQs
Frequently Asked Questions have been vetted and answered directly by each listing.
Q
Is there free Wi-Fi available in the area?
A
No, there is not.
Q
Are there coin lockers?
A
Yes. (Paid)
Q
Are there restrooms?
A
Yes.
Q
Is re-entry allowed?
A
No.
Q
Is there a smoking area?
A
Yes. (Designated areas only)
Q
Are there any sightseeing spots nearby?
A
There is Oisuisha Dekamaru-kun.
Reviews
Details
- Name in Japanese
- 地底王国美川ムーバレー
- Postal Code
- 740-0505
- Address
- 1564-1 Nekasa, Mikawa-machi, Iwakuni, Yamaguchi 740-0505
- Phone
- 050-3187-8619
- Closed on
- Tuesdays and Wednesdays (open during Golden Week, spring break, summer vacation, and national holidays), December 31–January 1
- Hours
- 10:00am–5:00pm (Reception closes at 4:00pm) *Hours vary by facility, including the shop, restaurant, and bathing facilities
- Admission
- Adults (junior high school students and older): 2,400 yen, Children (elementary school students): 1,200 yen, Free for preschool children
- Access
- Approx. 30 minutes by car from Iwakuni IC on the Sanyo Expressway
- Credit Cards
- Accepted
- Official website
- Official website (Japanese)
Popular Articles