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Iwami Ginzan and Omori Town Shimane – World Heritage Mine Tunnel and Historic Streets

Iwami Ginzan and Omori Town Shimane – World Heritage Mine Tunnel and Historic Streets
Iwami Ginzan and the Omori townscape in Ōda, Shimane once flourished as a world-famous silver mine and today form a UNESCO World Heritage Site with a timeless atmosphere. This guide covers the Ryūgenji Mabu mine tunnel tour, walks past preserved samurai and merchant houses, the Iwami Ginzan Museum and cozy cafés, seasonal scenery, suggested itineraries, access and how much time to allow for a relaxing history-filled day trip.

Highlights

Iwami Ginzan Silver Mine & Omori Town at a Glance

A great heritage visit where you can tour the Ryugenji Mabu mine tunnel at the World Heritage Iwami Ginzan Silver Mine and also stroll the historic streets of Omori.

Old Town Walk Highlights

Omori's preserved streets feature former samurai and merchant houses, with a distinctive look of red Sekishu roof tiles and white walls lining the townscape.

Mine Tunnel Highlight: Ryugenji Mabu

The must-see "Ryugenji Mabu" lets you feel Iwami Ginzan's history firsthand as you walk through the tunnel.

Good Stops Along the Way

Visit the Iwami Ginzan Museum to add context, and many people also take a break at Gungendo's cafe or browse its lifestyle shops.

Getting There

From JR Oda-shi Station: about 25 minutes by bus to the Omori area. If walking to Ryugenji Mabu, plan roughly 30-50 minutes one way as a guide / By car: about 1 hour 30 minutes from Izumo IC.

How Long to Spend

If you walk the townscape and continue to Ryugenji Mabu, plan a half day (about 3-4 hours). If focusing mainly on the town center, about 1.5-2 hours is a good guide.

Crowds & Walking Notes

Busy periods can get crowded, so earlier hours are often easier. The tunnel can be dark and the ground may be slippery, so wear comfortable walking shoes.

For the latest information, please refer to official announcements or check on site.

What Are Iwami Ginzan and Omori Townscape? World Heritage Silver Mine Ruins

Iwami Ginzan (Iwami Ginzan Silver Mine) is a silver mine archaeological site located in Ōda City, Shimane Prefecture.

The “Omori Townscape,” which prospered as its central area, is a historic townscape that still preserves the atmosphere of that era.

Iwami Ginzan is registered as a UNESCO World Cultural Heritage site.

Among its highlights, the Ryūgenji Mabu tunnel (Ryūgenji Mabu), a mine tunnel open to the public, is a must-visit spot where you can experience what silver mining was like in the past.

Surrounded by tranquility, this place is where nature and people coexist and history and culture still thrive.


Top Things to See in Omori Townscape

1. Samurai Residences and Merchant Houses

In Omori Town, samurai residences and wealthy merchant homes from the Edo period still remain, and the historic landscape has been beautifully preserved.

The red Sekishū roof tiles and white-walled buildings create a charming atmosphere, and you can enjoy the feeling of the Edo period while strolling through the town.

In particular, the Kumagai Family Residence (a nationally designated Important Cultural Property) and the Former Kawashima Residence are valuable buildings where you can learn about daily life in those days and the prosperity brought by the silver mine.

2. Ryūgenji Mabu | Mine Tunnel Open to the Public Year-Round

Ryūgenji Mabu is a mine tunnel ruin at Iwami Ginzan that is open to the public year-round.

“Mabu” means a mine tunnel, and many mabu tunnels have been identified at Iwami Ginzan.

Ryūgenji Mabu was a magistrate’s office-operated tunnel developed in the mid-Edo period. Its total length is about 600 meters, but currently the section open to the public is about 157 meters from the entrance (about 273 meters including the new tunnel section).

The inside is cool and refreshing, and marks carved by chisels from that time remain on the walls.

You can also see a vertical shaft (tatekō) dug about 100 meters deep for drainage.

  • Estimated visit time: About 15–20 minutes inside the tunnel (about 80–90 minutes round trip on foot from Iwami Ginzan Park)
  • Admission fee: 500 yen for high school students and older / 250 yen for elementary and junior high school students
  • Opening hours: 9:00–17:00 (until 16:00 from December to February), last admission 10 minutes before closing


3. Iwami Ginzan Museum (Imo Magistrate Museum)

Omori Town has the Iwami Ginzan Museum, where you can learn in detail about the history of Iwami Ginzan, silver mining techniques, and the culture of the time.

Built on the site of the former Omori Magistrate’s Office, the museum has a rich collection of exhibits including models, ore samples, and historical documents.

Visiting the town after the museum will deepen your understanding even more.

4. Gungendō

“Gungendō,” a renovated traditional samurai residence, is a popular spot with a stylish café and gift shops.

It offers sweets made with local ingredients, crafts, and original clothing, and is popular with visitors.

It is a perfect place to take a break during your walk.

5. Ginzan Park and Walks in the Surrounding Area

Starting from the Omori Townscape, you can walk around Ginzan Park and the surrounding nature.

Along the walking path to Ryūgenji Mabu, you will find the remains of the Shimizudani Smelter and entrances to several mabu tunnels, giving you a real sense of the scale of the silver mine.

With beautiful seasonal scenery and a quiet townscape, it is a soothing place to spend time.


Best Time to Visit Iwami Ginzan by Season

  • Spring (March to May): Cherry blossoms bloom in abundance, adding color to the townscape.
  • Summer (June to August): The Ryūgenji Mabu tunnel stays cool throughout the year, making it ideal for escaping the summer heat.
  • Autumn (October to November): Autumn leaves are beautiful, and the contrast with the red Sekishū-tile townscape is spectacular.
  • Winter (December to February): Snow-covered Omori Townscape and the quiet Iwami Ginzan create a magical atmosphere.

Access Information

Address

Omori-cho, Ōda, Shimane Prefecture

How to Get to Iwami Ginzan

  • By train and bus
  • About 25 minutes by Iwami Kotsu bus from JR San’in Main Line “Ōdashi Station,” then get off at “Omori Daikansho-ato” bus stop.
  • By car
  • About 50 minutes from the San’in Expressway “Izumo IC.”

Parking

Private cars are restricted in the Omori townscape and mine area.

The standard route is to park at the Iwami Ginzan World Heritage Center (free parking, about 400 spaces) and take a local bus (about 5 minutes one way) to the Omori area.

To reach Ryūgenji Mabu, it is convenient to walk about 40 minutes from the Omori bus stop, or use a rental bicycle (including electric-assist bikes) or the Ginzan Cart (electric cart).


Recommended Ways to Enjoy Iwami Ginzan

1. Historical Exploration at Ryūgenji Mabu

Step into the actual mine tunnel and walk through it while learning about the history of silver mining.

The chisel marks remaining on the walls vividly convey the traces of manual work by miners of the time.

If you join a guided tour by the local guide association (about 500 yen, reservation required), you can gain a deeper understanding.

2. Strolling the Townscape and Café Hopping

Take your time walking through Omori Town and enjoy the blend of tradition and modern life at cafés and shops such as Gungendō.

3. Deepen Your Knowledge at the Iwami Ginzan Museum

Visiting the museum before or after your walk and learning about the history and culture of Iwami Ginzan will make your trip even more rewarding.

Useful Travel Tips for Visitors

What to Bring and What to Wear

  • Comfortable walking shoes: The walk to Ryūgenji Mabu is about 2.3 km one way. Prepare sneakers or walking shoes.
  • Camera: Don’t forget to bring one to capture the beautiful buildings and mine tunnel scenery.
  • Light jacket: The tunnel stays cool year-round at around 15°C, so a layer is comfortable even in summer.

Important Notes

  • Environmental protection: To protect the historic buildings and mine tunnels of this World Heritage site, please take your trash home with you.
  • Safety check: Inside the tunnel, some areas have low ceilings and slippery surfaces caused by condensation, so watch your head and your footing.

The Omori Townscape and Ryūgenji Mabu at Iwami Ginzan are special sightseeing spots where history and nature are in harmony.

Walk through the townscape, experience the history of the silver mine, and create lasting travel memories.


Frequently Asked Questions

A. Iwami Ginzan is a heritage area where silver mining sites and the surrounding townscape remain together, listed in 2007 as “Iwami Ginzan Silver Mine and its Cultural Landscape.” It’s more satisfying to explore it as a “landscape,” including not only mine tunnels but also Omori’s streets and the historic routes connecting them.
A. Omori’s townscape is designated as an Important Preservation District for Groups of Traditional Buildings, with samurai-residence-style architecture and temples and shrines along the way. Mornings are quieter for photos, but some shops may not be open yet, so a good flow is a morning walk and photography, then a café break later in the day.
A. Ryugenji Mabu is open 9:00–17:00, and the entry fee is 500 yen for adults and 250 yen for elementary/junior high students. The tunnel stays cool even in summer, so a light layer helps. The floor can be damp on some days, so shoes with good grip are reassuring.
A. Even with a focused itinerary, plan 2–3 hours; including Omori’s streets, half a day is a good benchmark. Starting with Ryugenji Mabu and then heading to Omori often makes for an easier, mostly downhill walk. If time is tight, combining the route with a rental bicycle can be convenient.
A. Public transport can work using buses from the nearest station into the Omori area, but services may be infrequent. By car, roads in the center can be narrow, so the standard approach is to park in designated lots and explore on foot. Prioritize pedestrians and avoid stopping on the roadside.
A. Some sections have low ceilings, and footing can feel dark. A hood or light knit cap can be more practical than a brimmed hat for protecting your head. For photos, the light contrast is strong, so setting exposure near the entrance before moving deeper can help reduce blur.
A. In Omori, you’ll find temples and shrines, small museums, and cafés dotted around the streets. If you’re getting tired, taking a short break at a rest area along the old road can make the second half easier. There are flatter routes for walking around town, so picking up a map at the tourist information center helps you avoid getting lost.
A. Silver-mine-themed crafts and local Iwami specialties (Japanese sweets, tea, seafood products) are easy picks. Paper bags don’t do well in rain, so it helps to bundle shopping at the end or bring a water-resistant sub-bag. For fragile items, ask the shop for extra cushioning to carry them safely.

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