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Tongyeong Undersea Tunnel

4
·953 reviews·Tongyeong-si, South Korea

A historic undersea passage connecting Tongyeong's districts, offering a unique walk and a glimpse into past engineering.

Highlights

Highlights

Must-see attractions

Social content

Social

From TikTok & Reddit

Best Time

Daytime

Best for pedestrian access

CrowdLow
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해저터널 입구

Tongyeong Undersea Tunnel

Best Time

Daytime

Best for pedestrian access

CrowdLow
Highlights

Highlights

Must-see attractions

A historic undersea passage connecting Tongyeong's districts, offering a unique walk and a glimpse into past engineering.

4
(953 reviews)

"It's a cool adventure to go through, a historical place worth walking by."

Vertical photo
TIP

🚶‍♀️ Walk or Run Through

Great for a brisk walk or run, especially in cooler weather. Offers a unique commute experience.

📸 Photo Opportunity

While not a typical tourist spot, it's a unique photo op. Capture the tunnel's architecture.

Third hero image

Quick Facts

Hours

Rating

4 · 953 reviews

Type

Tourist Attraction

👶 Good for kids♿ Wheelchair accessible🅿️ Accessible parking🚻 Accessible restroom

Highlights

Discover the most iconic attractions and experiences

Undersea Passage

Undersea Passage

Connecting Dongho-dong and Moksadong

Experience a unique walk or drive beneath the harbor, a historical feat of engineering.

Historical Engineering

Historical Engineering

Entrance areas

Appreciate a century-old structure that showcases past ingenuity and its ongoing utility.

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A Unique Commute

The Tongyeong Undersea Tunnel is primarily a functional undersea passage for vehicles and pedestrians, not a traditional tourist attraction. It offers a unique perspective on the city's infrastructure and a glimpse of marine life.

Beyond the Tunnel

While the tunnel itself is a quick experience, it serves as a gateway to Tongyeong's vibrant markets and scenic coastal areas. Plan to explore these attractions before or after your tunnel passage.

Best Times

When
Daytime
Why
Best for pedestrian access
Crowd
Low
When
Evening
Why
Atmospheric walk
Crowd
Low

Insider Tips

from TikTok, Instagram & Reddit

🚶‍♀️ Walk or Run Through

Great for a brisk walk or run, especially in cooler weather. Offers a unique commute experience. Reddit

📸 Photo Opportunity

While not a typical tourist spot, it's a unique photo op. Capture the tunnel's architecture. Reddit

➡️ Gateway to Markets

Conveniently connects you to Seoho and Jungang markets for local flavors. Reddit

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Tips

from all over the internet

🚶‍♀️ Walk or Run Through

Great for a brisk walk or run, especially in cooler weather. Offers a unique commute experience. Reddit

📸 Photo Opportunity

While not a typical tourist spot, it's a unique photo op. Capture the tunnel's architecture. Reddit

➡️ Gateway to Markets

Conveniently connects you to Seoho and Jungang markets for local flavors. Reddit

What Travellers Say

4
(953 reviews)

Reviews Summary

Visitors find the Tongyeong Undersea Tunnel to be a unique and historical passage, appreciated for its engineering and as a convenient link between city areas. While not a primary tourist attraction, its novelty and historical significance make it a worthwhile brief stop, especially when combined with nearby market visits.

"I recently had the pleasure of visiting Tongyeong, experiencing the city's captivating night tourism offerings. From the moment I arrived, I was enthralled by the combination of scenic beauty, cultural charm, and lively ambiance that Tongyeong had to offer.

Highlight of my night tour was the Tongyeong Undersea Tunnel. This architectural marvel provided a captivating journey beneath the ocean's surface, allowing me to witness the fascinating marine life that inhabits the surrounding waters. The tunnel's captivating lighting and informative exhibits added an educational dimension to the experience, deepening my appreciation for the city's natural wonders."

Mary Akpan

"Please note this is an undersea tunnel that is made to cross the harbour from one side to another. It is not really a tourist attraction.

However it is cool to take, I used it all the time while running (winter) around the city."

Chaib Nil

"Fantastic atmosphere, great example of past times. Nice adventure to go through."

Karol Dlugokecki

What People Like

Unique historical passage
Convenient city link
Novel walking experience

What People Dislike

Not a major attraction

Frequently Asked Questions

🚇 🗺️ Getting There

The tunnel connects Dongho-dong and Moksadong, allowing both vehicle and pedestrian traffic. You can access it by car, taxi, or by walking from nearby areas. It's a convenient passage for exploring different parts of Tongyeong. Reddit

While there isn't a specific bus stop directly at the tunnel entrance, it's easily reachable by bus routes that serve the surrounding districts of Dongho-dong and Moksadong. Check local bus schedules for the most convenient options. Reddit

Yes, pedestrians are welcome to walk through the tunnel. It's a popular route for locals and visitors looking for a unique stroll or even a run. Reddit

Parking availability can vary. It's advisable to look for public parking lots in the Dongho-dong or Moksadong areas before heading to the tunnel, especially if you are arriving by car. Reddit

Many find walking or running through the tunnel offers the best experience, allowing you to appreciate its scale and historical significance. Reddit

🎫 🎫 Tickets & Entry

No, the Tongyeong Undersea Tunnel is a public passage and does not require an entrance ticket for pedestrians or vehicles. Reddit

The tunnel is generally open 24/7 for vehicle traffic. Pedestrian access is also typically available at all times, though it's best experienced during daylight or early evening hours. Reddit

There is no admission fee to use the Tongyeong Undersea Tunnel. It's a free public infrastructure. Reddit

Yes, you can visit the tunnel at night. It is illuminated, offering a different atmosphere, and remains open for passage. Reddit

The tunnel is a paved passage, generally suitable for wheelchairs and strollers. However, be mindful of vehicle traffic and ensure you use designated pedestrian areas. Reddit

🎫 🧭 Onsite Experience

Inside, you'll find a functional undersea passage. While not a typical tourist attraction with exhibits, some visitors report seeing marine life through the tunnel's structure, especially during the day. Reddit

Walking through the tunnel typically takes about 5-10 minutes, depending on your pace. It's a relatively short but unique experience. Reddit

The tunnel is designed for both vehicles and pedestrians, with designated walkways. Always be aware of your surroundings and any approaching vehicles. Reddit

There are no specific tourist facilities like restrooms or shops directly within the tunnel itself. It's a transit point. Reddit

Built about 100 years ago, it's one of the earliest undersea tunnels in Korea, representing significant engineering achievements of its time. Reddit

🍽️ 🍽️ Food & Dining

No, the Tongyeong Undersea Tunnel is a transit passage and does not have any dining facilities within it. Reddit

The tunnel connects to areas near the Seoho and Jungang markets, which are excellent places to find local Korean street food, seafood, and traditional dishes. Reddit

Tongyeong is famous for its fresh seafood, especially oysters and sea urchin. You can also find delicious local specialties in the nearby markets. Reddit

You might find small convenience stores or local vendors near the tunnel entrances, particularly in the more populated market areas. Reddit

It's highly recommended to enjoy the local cuisine in the nearby markets before or after your tunnel experience, as they offer a much richer culinary adventure. Reddit

📸 📸 Photography

The entrance and exit points offer good perspectives of the tunnel's architecture. Inside, you can capture the unique perspective of the passage itself. Reddit

Yes, photography is generally allowed inside the tunnel. However, be mindful of vehicle traffic and avoid obstructing passage. Reddit

You can capture architectural shots of the tunnel, the perspective of walking through it, and potentially glimpses of the water or marine life if conditions are right. Reddit

The tunnel is illuminated at night, offering a different aesthetic for photography. The artificial lighting can create interesting effects. Reddit

Drone usage is typically restricted in urban areas and near infrastructure. It's best to check local regulations before attempting drone photography. Reddit

Tongyeong Undersea Tunnel (2026) – Best of TikTok, Instagram & Reddit Travel Guide