Conquer Hallasan & Beyond: The Best Hiking Trails in Jeju Island

September 10, 2026

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2026 What’s New on Jeju’s Trails
Hallasan — Choosing the Right Route for Your Fitness Level
The Jeju Olle Trail Network — Walking the Island’s Edge
Volcanic Crater Hikes Beyond Hallasan
Forest and Waterfall Trails for Non-Summit Days
2026 Budget Reality — What Hiking Jeju Actually Costs
Getting to Trailheads Without a Rental Car
What to Pack and When to Go
Frequently Asked Questions

2026 What’s New on Jeju’s Trails

If you tried booking a Hallasan permit in 2024 and got shut out within minutes, you already know the frustration. The Korea National Park Service overhauled the reservation system again in early 2026, and the changes are significant enough to affect how you plan your entire Jeju trip. Getting this wrong means standing at a trailhead with no entry — a problem that catches more foreign visitors than locals.

Here is what changed and what still applies in 2026:

Hallasan permit system: The National Park Reservation Service (knps.or.kr) now requires permits for Gwaneumsa and Seongpanak routes on weekends and public holidays year-round. Weekday hiking on these routes remains first-come, first-served but daily caps still apply. Eorimok and Yeongsil do not require advance permits but have timed entry windows enforced by park rangers at the gate.
Geomun Oreum reservation: This UNESCO-listed lava tube crater tightened its cap to 300 visitors per day in 2026 (down from 450), so booking three to four weeks out on weekends is now essential. The online booking portal added English-language support in March 2026.
Restored routes: The upper section of Donnaeko Valley trail, closed since a landslide in 2023, reopened in April 2026 with a new elevated boardwalk section. Worth adding back to your itinerary.
Olle Trail app update: The official Jeju Olle app received a major update in January 2026 with real-time trail condition alerts in English, Korean, Japanese, and Chinese. Download it before you land.
Drone ban: All national park areas on Jeju, including Hallasan and Geomun Oreum, now enforce a zero-tolerance drone ban. Fines start at 500,000 KRW (~$370 USD).

Pro Tip: Set your phone alarm for exactly 9:00 AM KST on the day reservations open for your target weekend — Gwaneumsa trail slots in 2026 fill within four to seven minutes on peak spring and autumn weekends. Log into the KNPS portal the night before and have your passport number ready to paste in.

Hallasan — Choosing the Right Route for Your Fitness Level

Hallasan stands at 1,947 metres, making it South Korea’s highest peak. The summit is not always the goal — in fact, only two of the four main routes reach the crater rim, and picking the wrong one for your fitness level turns what should be a memorable day into a sufferfest. Here is an honest breakdown of each route.

Seongpanak — The Long, Steady Climb

Distance: 9.6 km one-way. Elevation gain: roughly 1,350 metres. This is the most gradual route to the summit, following a wide forest path that is almost entirely paved with flat stones. The steady incline through dense cedar forest means you barely notice how high you are climbing until the trees thin out above 1,600 metres and Baengnokdam crater lake suddenly fills your view. Allow five to six hours up, three to four down. This is the best route for hikers who want to summit but lack technical experience.

Gwaneumsa — The Dramatic Alternative

Distance: 8.7 km one-way. This northern route is steeper, rockier, and rewards effort with far more dramatic scenery — narrow ridges, exposed rock faces, and views across the northern coast. The final push to the rim involves steel rope handholds on wet rock. Serious hikers prefer this route. Allow six to seven hours up. Note that the descent on this same route in wet weather requires real caution; rangers will sometimes close the upper section after rain.

Eorimok — The Family-Friendly Alternative

Distance: 5.1 km one-way. Eorimok does not reach the summit — it stops at Mansedongsan shelter at 1,700 metres — but it is arguably the most beautiful route on the mountain. In late April, the hillside above the treeline explodes with royal azaleas in shades of deep pink that make the trail feel almost surreal. The path is wide and well-maintained. Good for families with children over eight, and older hikers.

Yeongsil — Short, Steep, Spectacular

Distance: 3.7 km one-way to Baerokdam shelter (not the summit). This southern route climbs quickly through bizarre lava formations and twisted pine trees sculpted by centuries of wind. It is the shortest route but punishingly steep in sections. Timed entry enforced: you must pass the gate before 12:00 PM to allow time for safe descent.

The Jeju Olle Trail Network — Walking the Island’s Edge

The Olle trail system now spans 437 kilometres across 27 official routes circling Jeju’s coastline and interior. Most visitors only hear about it in passing and never actually walk it — which is a genuine shame, because several routes deliver experiences that Hallasan simply cannot.

The trails are marked with blue-and-orange ribbons tied to posts and the occasional blue horse figurine — the Olle mascot. Once you learn to spot them, navigation becomes almost automatic. The texture underfoot shifts constantly: the crunch of black volcanic gravel, then soft pine needles, then the flat thwack of your boots on a concrete harbour wall.

Route 1 — Seopjikoji to Seongsan (15 km)

This is the single best day of walking you can do on Jeju’s coast. The trail follows dramatic cliff edges above crashing waves, passes through narrow fishing village lanes where the smell of drying squid drifts across from racks outside every second home, and finishes with a direct view of Seongsan Ilchulbong rising from the sea. Walk west to east to keep the morning sun at your back.

Route 7 — Woetdom to Wolpyeong (17.6 km)

The southernmost stretch of the Olle system, this route passes through the coastal villages most foreign tourists skip entirely. Haenyeo — Jeju’s legendary female divers — can sometimes be seen surfacing in the shallow waters near Beophwan-ri in the early morning. The pace here is slow and the scenery unremarkable by Jeju’s dramatic standards, which is exactly the point.

Route 10 — Hwasun to Moseulpo (15.3 km)

This western route passes through the Jeju Gotjawal Forest, a dense tangle of subtropical woodland growing directly from jagged lava rock. The sound inside the forest is unlike anywhere else on the island — completely muffled, almost pressurised. A rest stop at the midpoint cafe in Sinchang village is worth building in.

Volcanic Crater Hikes Beyond Hallasan

Jeju has over 360 parasitic volcanic cones called oreum scattered across the island. Most visitors fixate on Hallasan and miss these entirely. Three stand apart from the rest.

Seongsan Ilchulbong (성산일출봉)

Rising 182 metres from the sea at Jeju’s eastern tip, Seongsan Ilchulbong is the island’s most photogenic landmark. The hike to the rim is steep but short — about 40 minutes up. The crater bowl at the top is enormous, grass-covered, and genuinely surprising in scale. Go at sunrise if you are staying nearby; the light turns the crater walls amber and the sea below goes flat silver. Entry fee: 2,000 KRW (~$1.50 USD) for adults in 2026. No permit required.

Geomun Oreum (거문오름)

This UNESCO World Heritage lava tube system includes a crater hike of roughly 10 km taking three hours. The terrain is raw and steep in places, the atmosphere genuinely remote — despite being 20 minutes from the main cross-island highway. Book ahead through the Geomun Oreum reservation portal. Entry: 2,000 KRW (~$1.50 USD).

Sanbangsan (산방산)

Unlike the other oreum, Sanbangsan is a lava dome — a massive rounded rock mass rising 395 metres from Jeju’s southwestern coast. The path climbs to a sea-facing cave temple partway up the cliff face where water drips from the ceiling year-round. The surrounding landscape, with its dramatic rock formations and coastal views toward Marado Island, is some of the most distinctive scenery on Jeju. The hike to the cave takes about 30 minutes.

Forest and Waterfall Trails for Non-Summit Days

Every multi-day hiking itinerary on Jeju needs at least one recovery day, and Jeju’s lowland trails are genuinely interesting rather than just convenient. These three are worth treating as destinations in their own right rather than consolation prizes.

Bijarim Forest (비자림)

A 2,800-year-old grove of bija (torreya) trees covering 448,000 square metres in the island’s northeast. The trail is almost entirely flat, about 2.5 km for a full loop. The forest canopy is so dense that even on a bright July afternoon the light inside is dim and cool. The smell — a mix of fresh resin and damp bark — hits you immediately when you pass through the entrance gate. Good for a slow morning before driving to Seongsan.

Cheonjiyeon Waterfall (천지연폭포)

Located in Seogwipo city, this 22-metre waterfall drops into a narrow basalt gorge where rare eel species (protected under Korean environmental law) live in the pool below. The walk from the entrance to the falls takes 15 minutes on a flat path. Go after rainfall for full water flow. Entrance: 2,000 KRW (~$1.50 USD).

Donnaeko Valley Trail (돈내코 탐방로)

The recently reopened Donnaeko route on Hallasan’s southern flank is Jeju’s most underrated forest walk. The trail follows a stream through a deep valley of subtropical broadleaf forest, climbing gradually over 7 km to a shelter at 1,100 metres. The new elevated boardwalk section (opened April 2026) spans a previously washed-out section and gives an unexpected aerial view of the canopy. No summit access from this route — it is purely about the valley itself.

2026 Budget Reality — What Hiking Jeju Actually Costs

Hiking Jeju is genuinely affordable, but accommodation and transport add up fast if you are not paying attention. Here is an honest breakdown of what to expect in 2026.

Trail Entry Fees

Hallasan National Park: Free (all routes)
Seongsan Ilchulbong: 2,000 KRW (~$1.50 USD)
Cheonjiyeon Waterfall: 2,000 KRW (~$1.50 USD)
Geomun Oreum: 2,000 KRW (~$1.50 USD)
Bijarim Forest: 1,500 KRW (~$1.10 USD)
Sanbangsan: Free

Accommodation per Night

Budget: Guesthouses and hiking-oriented pensions in Jeju City or Seogwipo — 35,000–55,000 KRW (~$26–$41 USD) per person
Mid-range: Small hotels and well-equipped pensions near trailheads — 80,000–130,000 KRW (~$59–$96 USD) per room
Comfortable: Design hotels in Seogwipo or Jeju City with reliable breakfast — 160,000–250,000 KRW (~$118–$185 USD) per room

Food Near Trailheads

Convenience store trail lunch (kimbap, energy drink, banana): 6,000–9,000 KRW (~$4.50–$6.70 USD)
Restaurant meal in Seogwipo (galchi jorim, black pork): 12,000–22,000 KRW (~$9–$16 USD)
Hallasan summit shelter snack bar (ramyeon, hot chocolate): 3,000–5,000 KRW (~$2.20–$3.70 USD)

Typical 4-Day Hiking Trip Total (per person, budget traveller)

Including accommodation, food, entry fees, and local transport but excluding flights: approximately 250,000–380,000 KRW (~$185–$280 USD). Mid-range travellers should budget closer to 550,000–750,000 KRW (~$407–$555 USD).

Getting to Trailheads Without a Rental Car

Renting a car on Jeju is easy and many hikers do it — but it is not the only option, and in 2026 it is no longer the most convenient option for reaching Hallasan specifically.

Hallasan Trailheads by Bus

Jeju City’s 240 and 281 buses serve Eorimok and Seongpanak respectively, running from Jeju City Terminal from 5:30 AM on hiking days. Journey time: 40–55 minutes. Fare: 1,200 KRW (~$0.90 USD) with a T-Money card — tap on, tap off, no coins needed. The 282 bus connects Seogwipo to Gwaneumsa. These connections were improved in 2025 as part of Jeju’s sustainable tourism push, and the timetables are now reliably integrated with KNPS permit booking confirmation times.

Seongsan and East Coast Trails

The 701 intercity bus runs between Jeju City and Seongsan in about 80 minutes, stopping at Seongsan Ilchulbong entrance. Hourly service starts at 6:10 AM. For Olle Route 1, this bus drops you at the Seopjikoji junction with a 10-minute walk to the trailhead.

Shared Shuttle Services

Several guesthouses in Jeju City and Seogwipo now operate informal morning shuttles for hiking guests — typically 10,000–15,000 KRW (~$7.50–$11 USD) per person — departing around 6:00 AM for Seongpanak or Gwaneumsa. Ask at check-in. It is not advertised widely but is common practice at hiking-focused pensions.

Kakao T Taxi

For trailheads that buses do not serve well (Yeongsil, Donnaeko), Kakao T works reliably across Jeju in 2026. Set your destination in the app and request a standard taxi. Expect 15,000–25,000 KRW (~$11–$18.50 USD) from Jeju City to Yeongsil depending on traffic and departure time.

What to Pack and When to Go

Jeju’s trail conditions shift dramatically by season, and packing for the wrong one is a common mistake that turns a great hike into a miserable one.

Spring (March–May) — Peak Season

The best overall hiking conditions on Jeju. Hallasan’s upper slopes are free of ice by mid-March on most years. The royal azalea bloom on Eorimok peaks in late April to early May and draws the largest crowds of the year. Book permits and accommodation at least three to four weeks out. Layers are essential — summit temperatures can be 10–15°C colder than Jeju City even in May.

Summer (June–August) — Hot, Humid, Typhoon Risk

The lowland forest trails (Bijarim, Donnaeko) are most pleasant in summer because the canopy keeps temperatures manageable. Hallasan summit hikes are sweaty and crowded. Typhoon season peaks in August — check forecasts 48 hours before your planned summit day, as trails close immediately when a typhoon warning is issued.

Autumn (September–November) — Second Best Season

Autumn colour on Hallasan typically peaks in mid to late October. Visibility is at its best after summer humidity clears. Trail conditions are excellent but permit competition is fierce from mid-October through early November.

Winter (December–February) — Crampons Required

Gwaneumsa and Seongpanak above 1,400 metres are icy from December through February. Micro-spikes or crampons are mandatory — rangers check at the gate and will turn you back without them. Winter sunrise hikes are extraordinary on clear days, with a sea of clouds below the summit if you time it right.

Essential Gear Checklist

Waterproof jacket and trousers (even in summer — Hallasan creates its own weather)
Trekking poles (compulsory feel on Gwaneumsa descent)
At least 2 litres of water — no potable water above shelters on most routes
High-energy snacks: Korean trail mix, energy gels, convenience store onigiri
Micro-spikes (October–April for upper Hallasan)
Headlamp (for early starts on permit-required routes)
Permit confirmation screenshot saved offline — park rangers check physically
T-Money card loaded with at least 20,000 KRW (~$15 USD) for buses

Frequently Asked Questions

Do I need a permit to hike Hallasan in 2026?

Gwaneumsa and Seongpanak routes require advance permits on weekends and public holidays, booked through the KNPS portal at knps.or.kr. Weekday hikes on these routes are first-come, first-served but capped. Eorimok and Yeongsil use timed entry enforced by rangers — no online permit needed, but arrive early.

How long does it take to hike Hallasan to the summit and back?

Via Seongpanak: allow eight to ten hours round trip. Via Gwaneumsa: nine to eleven hours. These are conservative estimates for average fitness levels. Rangers enforce turnaround times at each route’s midpoint shelter — usually noon for summit-bound hikers — so an early start before 7:00 AM is strongly recommended.

Is Hallasan safe for beginner hikers?

The Seongpanak and Eorimok routes are manageable for fit beginners with proper footwear. Gwaneumsa involves exposed scrambling and is not suitable for those without trail experience. Any icy conditions in winter make Hallasan unsuitable for beginners regardless of route. Proper hiking shoes with ankle support are non-negotiable on all routes.

What is the best time of year to hike Jeju overall?

Late April to early May for the azalea bloom on Hallasan, and mid to late October for autumn foliage. Both windows have the clearest skies and most comfortable temperatures — 12–20°C on the summit. These are also the most competitive periods for permits and accommodation, so plan two to three months ahead.

Can I complete an Olle Trail route without a guide?

Absolutely. The Olle trails are entirely self-navigable using the blue-and-orange trail markers and the official Jeju Olle app (updated in 2026 with English-language real-time alerts). Most routes pass through villages with convenience stores or cafes roughly every 5–7 km. A downloadable offline map from the app covers the full network without needing mobile data on the trail.

📷 Featured image by Amir Hossein Kargaran on Unsplash.

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