Hallasan, the volcanic summit that shapes Jeju
Published on 09/12/2026 at 16:25 | Editorial responsibility: Rafael MĂĽller, Editor-in-Chief AD HOC NEWS
Hallasan is a vast shield volcano that forms much of Jeju Island in South Korea, rising as the country’s highest mountain and anchoring the island’s landscapes.shield volcano The mountain stands in the centre of Jeju and gives its name to Hallasan National Park, a protected area recognised as both a national park and a UNESCO Biosphere Reserve.
A mountain that is Jeju’s backbone
Hallasan stands on Jeju Island off the southern coast of South Korea, rising to an elevation around 1,947 m (6,388 ft) above sea level, making it the highest point in the country.highest point in the country The bulk of Jeju is built from this single volcanic mass, so travelling across the island means moving around the flanks of Hallasan rather than away from it.forms the bulk of Jeju Island
The area around the mountain is protected as Hallasan National Park, designated in 1970 as South Korea’s ninth national park.designated as the 9th national park in 1970 The park’s status is reinforced by its inscription as a UNESCO Biosphere Reserve and World Heritage Site, recognising the volcanic landscapes and ecosystems that spread outward from the central peak.UNESCO Biosphere Reserve and World Heritage Site
Crater, lava fields and forested slopes
Hallasan is a dormant volcano built in the broad, gently sloping form associated with shield volcanoes, the product of repeated lava flows spreading over a wide area.massive shield volcano Around the summit lies a crater, and the upper slopes are dotted with smaller volcanic features such as secondary cones and old lava fields that mark different phases of eruption.
The mountain carries different vegetation belts as altitude increases, with forests on the lower slopes giving way to shrub and smaller plants towards the summit, including alpine species adapted to the cooler, wind-exposed upper reaches.diverse ecosystems and alpine plants Snow can lie across the higher ground in winter, while spring and autumn bring clear views over the island and the surrounding sea from the crater rim.
Hallasan National Park and its trails
Hallasan National Park covers over 153 sq km (about 59 sq miles) around the mountain, enclosing a ring of forests, volcanic features and viewpoints.about 153 square kilometres The park is the setting for several named hiking trails that climb different sides of the volcano, including routes such as Seongpanak, Gwaneumsa, Yeongsil and Eorimok.seven hiking trails
Two of these trails, Seongpanak and Gwaneumsa, lead to the summit area, where wooden walkways and viewing platforms look across the crater and outward to the rest of Jeju.summit via Seongpanak or Gwaneumsa Other paths reach viewpoints on the mountain’s flanks, shorter ridges and volcanic formations, giving access to the park’s landscapes without requiring a full ascent to the highest point.
Visiting Hallasan: what travellers from Western Europe should know
- Hallasan rises in the centre of Jeju Island in South Korea, with trailheads such as Seongpanak and Gwaneumsa reached from Jeju City by road and public transport.
- The mountain is high enough for weather and underfoot conditions to change with altitude, and summit routes include long sections of wooden steps and boardwalks.
- The official language is Korean and the currency is the South Korean won.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
Searching for Hallasan on social platforms
These links open searches for Hallasan on each platform.Frequently asked questions about Hallasan
Where is Hallasan and how does it relate to Jeju?
Hallasan stands in the centre of Jeju Island in South Korea, forming most of the island’s landmass and rising as its dominant volcanic peak.
What should visitors expect on a visit to Hallasan National Park?
Visitors encounter forested slopes, volcanic rock formations, altitude changes and established trails leading to viewpoints and, on longer routes, the summit area.
What makes Hallasan distinctive among South Korean mountains?
Hallasan combines the country’s highest elevation with a broad shield volcano structure and a national park recognised as a UNESCO Biosphere Reserve and World Heritage Site.
