Conquering Hallasan: Your Guide to Hiking Jeju Island’s Iconic Volcano

Since Jeju Island introduced mandatory trail reservations for Hallasan’s summit routes in late 2024, hikers have been getting turned away at the gate — not because the mountain is full, but because they didn’t book online beforehand. If you’re planning to stand at the top of South Korea’s highest peak in 2026, that reservation step is non-negotiable. This guide covers everything from which trail actually suits your fitness level to what the crater looks like when the clouds clear.

The Four Trails: Choosing Your Route Up Hallasan

Hallasan has four main trails, and they are not interchangeable. Two reach the summit at Baengnokdam Crater — Seongpanak and Gwaneumsa — and two don’t. Picking the wrong one based on bad internet advice is the most common mistake first-timers make.

Seongpanak Trail

This is the most popular summit route. It runs 9.6 km one way from the eastern trailhead, gains elevation gradually, and is mostly forested. The path is wide and well-maintained, but “gradual” doesn’t mean easy — the final 1.5 km gets steep and rocky. Total round trip is typically 7 to 9 hours. Most hikers who complete Hallasan use this route on the way up and come down the same way.

Gwaneumsa Trail

The harder summit route. At 8.7 km one way, it’s shorter but significantly more rugged, with exposed ridgelines, rope sections, and a 1,200-metre elevation change. The views along the ridge above the treeline are the best on the mountain. Experienced hikers often prefer this trail for the scenery, then descend via Seongpanak to avoid repeating the technical sections. You’ll need a shuttle between trailheads if you do a traverse — taxis are available, roughly 15,000–20,000 KRW (~$11–$15).

Eorimok and Yeongsil Trails

These two trails don’t reach the summit — they stop at Witse Oreum (1,700 m) and Baerokdam Observatory respectively. That might sound like a consolation prize, but Yeongsil in particular is worth hiking for its own reasons. The trail passes through ancient twisted hackberry trees draped in mist, and the panoramic view from the ridge on a clear day stretches across the entire western coast of Jeju. Both are significantly shorter (3–5 km one way) and suit families or people with limited time.

Permits, Entry Cutoffs, and the 2026 Reservation System

As of 2026, hikers on both summit trails must register through the Hallasan National Park reservation portal before arriving. Walk-ins are technically allowed if daily capacity hasn’t been reached, but in peak season (October foliage, cherry blossom weeks in April) that’s rarely the case by 7 a.m.

The entry cutoff times are strictly enforced and have changed slightly since 2024:

• Seongpanak: No entry after 12:00 p.m. (noon) year-round
• Gwaneumsa: No entry after 12:00 p.m. year-round
• Eorimok: No entry after 1:00 p.m. (December–January: 12:00 p.m.)
• Yeongsil: No entry after 1:00 p.m. (December–January: 12:00 p.m.)

Rangers check both entry and descent times at shelter checkpoints on the summit routes. If you haven’t reached Jindallaebat Shelter on Seongpanak by 12:30 p.m., you will be turned back — they mean it. Build your schedule around a 6:00–7:00 a.m. trailhead start.

What to Pack (and What to Leave Behind)

Hallasan’s weather changes fast. The summit sits at 1,950 metres, and even on a warm Jeju summer day, the crater rim can be 8–12°C cooler than sea level. People show up in July wearing shorts and spend the summit in genuine discomfort.

Essential gear:

• Waterproof jacket — not a windbreaker, an actual rain shell
• Hiking boots with ankle support (the Gwaneumsa trail especially)
• Trekking poles — the descent on rocky sections is significantly easier with them
• At least 2 litres of water per person; there are no water sources after Samgakbong Shelter
• Packed lunch — the shelter at Baengnokdam sells instant noodles and drinks, but little else
• Sunscreen and a hat; the ridge sections have zero shade
• A small headlamp in case your descent runs late

Leave behind: Glass bottles (prohibited on trail), large roller luggage (yes, this has happened), and any expectation of mobile signal above the treeline. KT and SK Telecom lose signal between the upper shelters and the summit on most days.

Timing Your Hike: Seasons, Weather Windows, and Summit Fog

There is no bad season to hike Hallasan, but each season comes with a real trade-off you should understand before booking flights.

Spring (March–May): Cherry blossoms bloom on the lower slopes in late March to mid-April. The trail from Gwaneumsa is particularly striking during this period, with azaleas following the cherries into May. Crowds peak during Golden Week (early May) — book trail reservations weeks ahead.

Summer (June–August): Green and lush but frequently foggy at the summit. Jeju sits in a humidity belt, and the crater can be completely socked in by cloud even when Jeju City is sunny below. The upside: fewer hikers on weekdays, and the forest shade makes the long Seongpanak ascent more bearable in the heat.

Autumn (September–November): The best season overall. The summit ridge turns red and orange from late October, visibility is generally the clearest of the year, and morning temperatures are crisp rather than cold. October weekends sell out trail reservations within hours of release.

Winter (December–February): Snow on the summit from mid-December through February creates the most dramatic landscape on the mountain. The park provides crampons for rent at the trailheads (around 2,000 KRW / ~$1.50) and requires them above certain elevations when conditions are icy. Entry cutoffs move earlier. The cold is real — summit temperatures regularly drop below -10°C with wind chill.

Regardless of season, check the Jeju Meteorological Administration forecast the evening before. Summit fog doesn’t clear just because the valley is sunny — the mountain makes its own weather, and the crater view can go from zero to spectacular within 20 minutes as cloud bands shift.

The Summit Experience: Baengnokdam Crater and What You Actually See

Baengnokdam is not a dramatic fire-and-ash crater. It’s a caldera lake — quiet, still, ringed by volcanic rock and low alpine scrub. The name translates roughly as “white deer lake,” from an old myth about deer drinking from its waters. On a clear day, the lake reflects the sky and the crater walls in a way that feels entirely different from the industrial hiking effort it took to get there.

The summit rim is a narrow path that loops around the edge. You’ll hear other hikers exhaling when they crest the final ridge and the crater opens up — that moment, after four or five hours of forest and switchbacks, has a particular quality to it. The wind usually picks up sharply at the top, and the smell of thin, cool air mixed with volcanic rock is distinct from anything on the trails below.

On a clear day you can see the entire island spread below — Jeju City to the north, the southern coast, the smaller oreum (parasitic volcanic cones) dotting the landscape like upturned bowls. On a foggy day, you’re standing inside a cloud looking at a grey lake. Both are worth it in different ways.

The summit shelter sells hot drinks. A cup of instant coffee or corn soup after the final climb, hands wrapped around a paper cup in the wind, is one of those small things that lands harder than it should.

2026 Budget Reality: Costs, Gear Rental, and Getting to the Trailheads

Hallasan National Park has no entrance fee — the mountain itself is free to hike. Your costs come from transport, food, and optional gear.

Getting to the Trailheads

• Bus (budget): Jeju City buses serve both Seongpanak and Gwaneumsa trailheads. Bus 181 runs from Jeju Intercity Bus Terminal to Seongpanak — around 3,000 KRW (~$2.20) each way. Early morning departures from 6:00 a.m. were added in 2025 specifically for hikers. Journey time is 40–50 minutes.
• Taxi (mid-range): From central Jeju City to Seongpanak, expect 18,000–25,000 KRW (~$13–$19) depending on traffic. Kakao T is reliable for booking.
• Rental car (comfortable): A day rental in 2026 runs 60,000–90,000 KRW (~$44–$67) through major operators. Parking at Seongpanak is free but fills by 7:30 a.m. on weekends.

On-Mountain Costs

• Crampon rental (winter): ~2,000 KRW (~$1.50)
• Trekking pole rental at trailhead shops: 5,000–8,000 KRW (~$3.70–$5.90) per pair
• Summit shelter food: cup noodles 2,000–3,000 KRW (~$1.50–$2.20), hot drinks 1,500–2,500 KRW (~$1.10–$1.85)

Total Day Budget Estimates

• Budget: 15,000–25,000 KRW (~$11–$18) — public bus, packed lunch, water from convenience store the night before
• Mid-range: 50,000–80,000 KRW (~$37–$59) — taxi both ways, shelter food, gear rental
• Comfortable: 100,000–150,000 KRW (~$74–$111) — rental car, full hiking gear rented, restaurant meal at Seongpanak village before or after

Frequently Asked Questions

Do I need to be an experienced hiker to climb Hallasan?

Seongpanak trail is manageable for people with reasonable fitness who are comfortable walking for 7–9 hours. No technical climbing skills are required. Gwaneumsa is more demanding with steep, rocky sections. If you hike regularly — even city walking — Seongpanak is within reach with proper preparation and an early start.

Is the Hallasan reservation system mandatory in 2026?

Yes. Both summit trails — Seongpanak and Gwaneumsa — require advance reservation through the Hallasan National Park portal. Walk-ins may be accepted if capacity remains, but this is unreliable during peak seasons. The system is available in English and does not require a Korean ID, but you need a valid email and contact number to register.

Can I hike Hallasan in one day as a tourist visiting Jeju briefly?

Yes, but only if you’re staying in or near Jeju City and can leave by 6:00 a.m. The Seongpanak summit and return takes 7–9 hours. Factor in transport time both ways. A one-day Hallasan hike is genuinely possible, but it should be the only major activity you plan for that day — you will be tired.

What is the best trail for first-timers who want to reach the summit?

Seongpanak. It’s longer but less technically demanding, better signposted, and has more shelter checkpoints for safety. The elevation gain is spread over a greater distance, which is easier on joints and energy levels. First-timers are better served by a slower, steadier climb than the shorter but steeper Gwaneumsa alternative.

Are dogs allowed on Hallasan trails?

No. Pets are prohibited on all Hallasan National Park trails. This is strictly enforced at entry checkpoints. If you’re travelling with a pet, arrangements for their care during your hike day need to be made in advance through your accommodation or a local pet daycare service in Jeju City.

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📷 Featured image by Chadmin pictures on Unsplash.