Manjanggul Lava Tube in Jeju — Tickets, Hours, and What to See Inside

Quick Answer

Manjanggul (만장굴) is a natural lava tube cave on Jeju Island, a UNESCO World Natural Heritage Site and Korean Natural Monument No. 98. It reopened on May 30, 2026, after 2.5 years of renovation. Adults pay 4,000 KRW (as of 2026). The open section is 1 km long and ends at the world's largest lava column — 7.6 meters tall. Plan for approximately one hour.

The Full Answer

Manjanggul is part of the Geomunoreum Lava Tube System (거문오름 용암동굴계), a network of interconnected lava tubes created roughly 100,000–300,000 years ago when lava flows from Geomunoreum volcano traveled south toward the sea. As the outer surface cooled and hardened, molten lava drained out from the interior, leaving behind tunnels. Manjanggul is one of the longest such tubes in the world — the total length is approximately 7,400 meters, though some surveys estimate up to 8.9 km. Of that, only 1 km is accessible to the public.

UNESCO designated the Geomunoreum Lava Tube System a World Natural Heritage Site in 2007, specifically citing its "pristine condition" and the exceptional diversity of lava formations inside. This is not a developed tourist cave with artificial stalactites. What you see is entirely geological — formations built by flowing rock, not dripping water.

The cave has three entrances. Only Entrance No. 2, the south-facing entrance, is open to visitors. The other two lead into restricted zones where a colony of more than 30,000 common bent-wing bats roosts in the undisturbed dark.

Manjanggul closed in late 2023 for a comprehensive renovation project costing 12.1 billion KRW (approximately $9.1 million USD). The work added walking decks along the entire 1 km section, installed low-brightness LED lighting designed to preserve the cave's ecological environment, and put rockfall prevention systems in place. Temperature and humidity displays now appear at intervals inside. The cave reopened on May 30, 2026 — and 2026 also marks the 80th anniversary of its discovery by Park Jong-hyu (박종휴), who would turn 100 this year.

What's Inside: The 1 km Walk

Manjanggul lava tube cave interior on Jeju Island showing the illuminated walkway leading toward the world's largest lava column, with dark basalt walls and blue-lit path, UNESCO World Heritage site

The entrance staircase descends into a different thermal world. Outside, it might be 30°C in August. Inside, the temperature holds at 11–14°C (52–57°F) year-round. I took a jacket in July and still felt cold by the time I reached the far end. The chill is consistent — not the kind that fades once your eyes adjust.

The walking path follows a mostly flat route along the new decking, wide enough to accommodate two-way foot traffic comfortably. The ceiling height varies considerably. In some sections you walk upright through a passage wide enough to park a bus; in others the ceiling drops to roughly two meters and the walls close in. The scale shifts constantly, which is part of what makes the walk interesting — you are not moving through a uniform corridor.

The formations along the route include lava stalactites hanging from the ceiling, flowstones coating the walls in smooth sheets, lava shelves (용암선반) — horizontal ledges left behind when lava drained at different speeds — and lava rafts (용암뗏목), slabs of solidified crust that floated on moving lava before settling. There is also a lava formation near the entrance known as the Stone Turtle (돌거북), named for its resemblance to the shape of Jeju Island itself.

The end of the 1 km section is where the walk earns its reputation. Standing in front of the lava column (용암석주) — 7.6 meters tall, formed when lava dripped from the ceiling and built up from the floor until the two formations met — makes the scale of what you have been walking through finally register. This is the world's largest lava column. No other lava tube in the world has produced one of this size. The low LED lighting at the base is calibrated to show the column without washing out the texture of the rock. Photography is permitted; I found smartphone night mode handled it well without a tripod, though a tripod gives sharper results.

The walk is one way — you turn around and retrace the same path. Total walking distance is approximately 2 km. There are no other exits.

Tickets and Opening Hours

Category	Individual	Group (10+)
Adults (ages 25–64)	4,000 KRW	3,000 KRW
Teens & Children (ages 7–24)	2,000 KRW	1,500 KRW
Under 6	Free	Free

(As of May 2026. Prices may change — verify at the entrance.)

Hours: 09:00–18:00 daily. Ticket sales close at 16:50; last entry is at 17:10.

Closed: The first Wednesday of every month. Also closed during heavy rainfall — this is a safety measure, not just a policy. If it has been raining heavily in the area, check the Jeju tourism site or call ahead before making the drive.

Free docent guided tours are available from 09:00–17:00. Sign up at the entrance booth on arrival. Guides explain the formations and geological history in Korean; English-language interpretation is not always guaranteed, but the geological context they provide is worth it even through partial translation.

Parking is free and available at the cave entrance.

How to Get to Manjanggul Cave

The 7.6-meter lava column inside Manjanggul cave on Jeju Island — the world's largest lava column, illuminated by green and white lights against the dark volcanic cave ceiling

Address: 182 Manjanggul-gil (만장굴길 182), Gujwa-eup (구좌읍), Jeju City (제주시)

By rental car (recommended): Take Route 1132 (the coastal road) east from Jeju City. The drive is approximately 30–40 minutes. The route is straightforward, and the parking lot at the cave is free. Most visitors to east Jeju combine Manjanggul with Seongsan Ilchulbong on the same day — the two sites are approximately 20–25 km apart.

By bus: From Jeju International Airport, take Bus 101 toward the east coast. Transfer at Gimnyeong (김녕) to Bus 711-1, which stops at "Manjanggul" (만장굴). Total travel time is approximately 1.5 hours. Buses 711-2, 910, and 990 also serve the area from Jeju Intercity Bus Terminal. From the bus stop, walk approximately 180 meters to the cave entrance.

By taxi: From Jeju City, a taxi takes approximately 27–40 minutes and costs approximately 25,000–35,000 KRW (as of 2026) depending on traffic and the specific departure point.

What to Wear and Bring

The single most important item is a jacket. Not a light layer — a proper jacket. The cave runs at 11–14°C regardless of the season, which means that in summer, when everyone arrives in shorts and a t-shirt, the gap between outside and inside is approximately 20 degrees. I took a jacket in July and still needed it for the entire walk. A thin windbreaker is the minimum; a fleece or light down jacket is more comfortable.

Footwear: The new walking decks have significantly improved footing, but the surfaces are still uneven in places. Non-slip, closed-toe shoes are the right choice. Sandals, flip-flops, and heels are not appropriate — and not just for comfort. The entrance stairs are steep enough that poor grip creates a real fall risk.

Photography: Flash photography is restricted. Smartphone night mode works well for most of the cave. If you want sharp images of the lava column at the far end, a small tripod or a phone grip that can brace against the railing makes a noticeable difference. There is enough light from the LEDs to compose a frame; there is not enough to freeze motion without support.

Restrooms: There are no restrooms inside the cave. Use the facilities at the entrance before you descend. The cave is a one-way, 1 km walk with no shortcut back.

How Long to Spend Here

The 1 km walk to the lava column and back takes most people 45 minutes to 1.5 hours. Budget 1 hour to be comfortable. If you join a docent tour, add another 20–30 minutes.

Manjanggul sits in the middle of east Jeju, which makes it a natural anchor for a full-day itinerary. The most common combination is Manjanggul in the morning and Seongsan Ilchulbong (성산일출봉) in the afternoon — the two sites are approximately 25 km apart and represent two very different geological experiences. A shorter add-on is Gimnyeong Maze Park (김녕미로공원), a 15-minute walk from the cave entrance, shaped like a map of Jeju Island.

Geomunoreum (거문오름), the source volcano of the entire lava tube system and approximately 10 km to the west, is worth visiting if you want to understand the geological context of what you saw inside Manjanggul. It requires advance reservation — the daily limit is 300 visitors. Bijarim Forest (비자림), an ancient nutmeg forest approximately 10 km southwest, works well as a quieter, lower-intensity afternoon stop.

What You Need to Know

Closed the first Wednesday of every month. This applies consistently throughout the year. If you are visiting Jeju on a Wednesday, verify the date against the monthly closure schedule before building the cave into your itinerary.
Rain closures apply. Heavy rainfall can trigger an unscheduled closure for safety reasons. There is no advance notification system — the decision is made on the day. Check local weather and, if there is significant rain in the forecast, confirm with the Jeju tourism information line (064-740-6000) before traveling east.
Strollers are permitted on the new post-renovation decks, but the entrance involves a staircase that requires carrying the stroller. Once you are on the main path, the decking is stroller-accessible. Wheelchairs face the same staircase limitation — the interior path is flat, but entry is not step-free.
The bat colony is not visible. The 30,000+ common bent-wing bats that live in the deeper sections of Manjanggul are in the restricted, unlit zones beyond the 1 km tourist section. The cave is managed specifically to avoid disturbing them. You will not see them, but you may hear faint sounds near the boundary.
2026 is the cave's 80th anniversary. Park Jong-hyu (박종휴) discovered the cave in 1946; 2026 marks 80 years, and also his 100th birthday. There may be commemorative events or signage during the year.
The cave has three entrances; only one is open. Entrance No. 2 is the only access point for tourists. Entrances No. 1 and No. 3 are sealed. Do not attempt to access restricted areas.

Practical Tips

Arrive before 10:00 or after 15:00 on weekdays. The cave's peak hours are mid-morning on summer weekends and throughout October, when Jeju's autumn tourism season peaks. A 09:00 arrival means you reach the lava column with far fewer people around it.
Pack your jacket in your bag, not back at the car. The walk from the parking lot to the entrance is short, but if you realize you need the jacket only after descending the entrance stairs, you will need to exit entirely to retrieve it. The temperature drop is immediate.
Sign up for the free docent tour at the entrance booth. Tours depart from 09:00–17:00. Even without fluent Korean, the guide's pacing and explanations of specific formations add significant context to what you are looking at.
Use the restrooms before you enter. There are no restrooms inside. The round trip is approximately 2 km and takes up to 1.5 hours. Plan accordingly.
For photography, switch to night mode and brace your phone. The LED lighting is intentionally dim. Night mode on most current smartphones handles the exposure well, but camera shake is the limiting factor. Press your elbow against the railing or use a mini tripod for shots of the lava column.
Combine with Seongsan Ilchulbong for a full east Jeju day. Manjanggul opens at 09:00; Seongsan is approximately 30 minutes away by car. Start at Manjanggul in the morning while it is cooler and less crowded, then drive southeast for the afternoon.
Verify the closure schedule before traveling. The first Wednesday closure and weather-related closures are both real possibilities. The Jeju tourism information line (064-740-6000) can confirm current status on the day.

Frequently Asked Questions

Is Manjanggul Cave open in 2026?

Yes. Manjanggul reopened on May 30, 2026, after approximately 2.5 years of renovation. The cave was closed from late 2023 through May 2026 for safety upgrades including new walking decks, LED lighting, and rockfall prevention systems. It is currently open as of June 2026, with standard hours of 09:00–18:00 (last entry 17:10). Note that it closes on the first Wednesday of each month and during heavy rain.

How much does it cost to enter Manjanggul Cave?

As of May 2026, adult admission is 4,000 KRW for individuals. Group rates (10 or more people) are 3,000 KRW per adult. Children and teens ages 7–24 pay 2,000 KRW individually or 1,500 KRW in a group. Children under 6 enter free. Parking is free.

What should I wear inside Manjanggul Cave?

Bring a jacket — the cave maintains a consistent 11–14°C (52–57°F) year-round, which feels noticeably cold in summer. Wear closed-toe shoes with non-slip soles. The entrance stairs and some uneven sections make sandals and heels a poor choice regardless of the season.

How do I get to Manjanggul Cave by bus?

From Jeju International Airport, take Bus 101 east toward the coast and transfer at Gimnyeong (김녕) to Bus 711-1. The total journey takes approximately 1.5 hours. Buses 711-2, 910, and 990 also serve the area from Jeju Intercity Bus Terminal. The bus stop is approximately 180 meters from the cave entrance. A rental car is faster and more flexible — the drive from Jeju City takes approximately 30–40 minutes.

How long does it take to walk through Manjanggul Cave?

The open section is 1 km one way; you retrace the same route back for approximately 2 km total. Most visitors take 45 minutes to 1.5 hours. Budget 1 hour to be comfortable, or up to 1.5 hours if you join a docent tour.

Can I visit Manjanggul with a stroller or wheelchair?

The new post-renovation decks inside the cave are stroller-accessible on the main path. However, the entrance involves a staircase, which requires carrying the stroller down. Wheelchair users face the same barrier — the interior path is flat, but the entrance is not step-free. Contact the site in advance (+82-64-710-7903) to discuss accessibility options.

What is the lava column in Manjanggul Cave?

The lava column (용암석주) at the far end of the open section stands 7.6 meters tall — the world's largest. It formed when lava dripped continuously from the ceiling and simultaneously built up from the floor, eventually merging into a single column as the cave cooled. No other known lava tube has produced a column this size. It is the primary reason most people make the 1 km walk to the end.

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