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Global Hiking Index
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MountHallasan

DATA_INDEXED_2026
Distance

18KM

Gain

1.3kM

Duration

1d

Strain
LVL 4
AI Insight: Extreme vertical movement detected (>1,000m/day). Stiff climbs and high cardiovascular demand expected.

The guardian of the island. Mount Hallasan is a majestic shield volcano that forms the bulk of Jeju Island. As a UNESCO World Heritage site, it offers a beautifully maintained trail network through unique basaltic landscapes and diverse flora. The trek to the summit is a full-day commitment, ascending through ancient stone-oak and fir forests into a subalpine zone. At the summit, hikers are rewarded with a direct view into the Baengnokdam—a vast crater and seasonal lake (White Deer Lake)—and, on clear days, panoramic views of the entire Jeju coastline and its surrounding volcanic 'oreums'.

Mission Directive / X-Factor

The Crater Rim and the Basalt Staircase. The 'X-Factor' is the sense of geological isolation. Scaling Hallasan feels like climbing a giant crown in the middle of the ocean. The trail design is impeccably Korean—thousands of perfectly placed wooden and basalt stone steps that lead you through a changing landscape of twisted trees and lava fields. Reaching the rim and looking into the perfectly circular crater, where white deer were said to drink, offers a serene, almost atmospheric connection to the island's volcanic origins.

Hazard Assessment

weather and visibilityPRIORITY 1

Jeju's weather is notoriously fickle; thick fog and heavy wind can obscure the trail and the summit views in minutes.

MITIGATION: Check the Hallasan mountain webcam and weather report before starting; carry a windproof shell even in summer; use the trail markers which are reliably placed even in low visibility.

strict checkpoint timesPRIORITY 1

To ensure hikers return before dark, there are strict cut-off times at mid-way shelters (e.g., Jindallaebat). If you arrive late, you will be denied access to the summit.

MITIGATION: Start your hike at the crack of dawn (before 7 AM); maintain a steady pace; check the current seasonal cut-off times on the National Park website before departure.

Critical Loadout

High-quality hiking boots (Required for the uneven volcanic rock)
Hiking poles (highly recommended for the descent)
Windproof and waterproof shell jacket
Small daypack
At least 2L of water and snacks
QR-code reservation (Electronic or printed)
Target Base Weight
< 10 KGEXCL. CONSUMABLES

Water Logistics

SOURCE AVAILABILITYLIMITED / CARRY
FILTRATION PROTOCOLMANDATORY (<2000M)

HIKING
PATHWAY

jeju-island // hiking

1
Start

Seongpanak or Gwaneumsa Trailhead

Entering the forest zone. Seongpanak is longer and more gradual; Gwaneumsa is steeper and more scenic.

2
Middle

The Forest Ascent

Walking through dense stone-oak forests and reaching the Jindallaebat or Samgakbong shelters.

3
Finish

The Summit Rim (Baengnokdam)

Final push through the alpine zone to reach the crater rim. Descending before the 2 PM often required summit clear-off time.

MISSION_START (ALPHA)WAYPOINT_DELTACORE_VILLAGE_SYNCSEGMENT_DETOUR_XTERMINAL_REF_Z
Topographical Ref / Area JEJU-AUTO-GEN SYNC: 33.361N 126.529E
Mission Log: Stage-by-Stage Technical MetricsREF: MOUNT-HALLASAN-HALLASAN-NATIONAL-PARK-JEJU-SOUTH-KOREA // DAT_TAB_01
StepSector / WaypointDist.Gain (↑m)DurationAssessment
1
Seongpanak or Gwaneumsa Trailhead
Entering the forest zone. Seongpanak is ...
1 hour---1 hourStandard Segment
2
The Forest Ascent
Walking through dense stone-oak forests ...
3-4 hours---3-4 hoursStandard Segment
3
The Summit Rim (Baengnokdam)
Final push through the alpine zone to re...
4-5 hours (Descent)---4-5 hours (Descent)Standard Segment

Technical Specifications

DOC_REF: GOLDEN_HIKING_KR_001
01 / LOG
Refuge Capacity

Vast selection of hotels and guesthouses across Jeju Island. There is no staying on the mountain itself.

02 / REG
Regulatory
  • Permit REQUIRED
  • Authority Hallasan National Park

You should book your slot online at the official portal. Slots open on the 1st of the previous month. You will need your passport number.

03 / CLI
Climatology
  • OptimalMay, Jun, Sep, Oct, Nov

Best in spring (Royal Azaleas) and autumn (fall foliage). Winter hikes are spectacular for snow scenery but require crampons/spikes. A reservation via the Hallasan Trail Reservation System is strongly advised for the summit trails. Regulations change; verify with the official park or local authority before departure.

04 / COM
Emergency / Comms
  • Rescue (EU) 112 ACTIVE
  • Signal Good
SAT-LINK STABLE

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Mount Hallasan