Travel guide: Jeju, South Korea

Jeju Island sits in the Korea Strait 85 kilometres south of the Korean mainland, a volcanic island of 1,833 square kilometres built around the 1,947-metre Mount Hallasan, the highest peak in South Korea. The island's two main cities, Jeju City on the north coast and Seogwipo on the south, each anchor a hemisphere of attractions connected by the 1132 coastal ring road. Jeju Island earned UNESCO World Natural Heritage status in 2007 for its volcanic landforms including Hallasan, the Geomun Oreum lava tube system, and the dawn-catcher Seongsan Ilchulbong tuff cone on the east coast. Jeju also holds UNESCO Global Geopark status and a place on the New 7 Wonders of Nature list, and the island receives roughly 15 million Korean domestic tourists a year plus a rising international share from Tokyo, Osaka, Shanghai, Bangkok, and Ho Chi Minh City.

Mount Hallasan dominates the interior. Four hiking trails lead to the 1,947-metre summit crater, the Baengnokdam; Seongpanak from the east side and Gwaneumsa from the north are the only two that reach the top and both require 8 to 10 hours round trip with early starts before 7 am for the safety turn-around. The crater lake fills during summer monsoon and dries to grass in autumn. Shorter options are the Yeongshil trail with its 1,200 Buddha rock pinnacles at 4 kilometres round-trip, and the Eoseungsaengak trail with cable-car-like summit views at 2.5 kilometres. Summit reservations opened in 2020 for the two main trails; book through the Jeju National Park portal two weeks ahead. Daily summit quota is 1,000 on Seongpanak and 500 on Gwaneumsa.

The east coast is the island's most photogenic half. Seongsan Ilchulbong, the Sunrise Peak, is a 182-metre tuff cone that erupted from the seabed 5,000 years ago with a near-circular crater rim. The 25-minute climb to the rim is a pre-dawn ritual with the calendar, a 2,000 Korean won entry. Below the cone, the fishing village of Seongsan has a 20-metre pier where Haenyeo, the UNESCO-intangible-heritage female free-divers, perform a demonstration dive every day at 1:30 pm and 3 pm. Udo Island, a 10-minute ferry east of Seongsan, is a flat 17-square-kilometre island perfect for a day trip by rental scooter or electric buggy with white-sand Hagosudong Beach, the Tulipnori flower fields, and a coastal cafe scene; ferry plus buggy day costs around 35,000 won.

South-coast Seogwipo is quieter and greener. Jungmun Tourist Complex on the west edge holds the island's Shinhwa theme park, Teddy Bear Museum, the Pacific Land dolphin show, and the Jeju International Convention Center. Cheonjeyeon Waterfalls, a three-tier system flowing through a lava cave to the sea, opens 9 am to 5:30 pm with a 2,000 won ticket; Cheonjiyeon Falls at the east edge of Seogwipo drops 22 metres into a pine-shaded pool for the same entry. Jusangjeolli Cliffs, 20 minutes west of Seogwipo, are a 2-kilometre line of hexagonal basalt columns rising from the Pacific that formed 250,000 years ago when Hallasan's lava hit seawater; the cliff walk is free. Whale watching from Daepo Port runs March to November at 45,000 won per person for a two-hour boat.

The Olle Walking Trail is the island's signature long-distance walking network. Launched in 2007 based on Spain's Camino de Santiago, the Olle Trails cover 425 kilometres across 27 routes looping the perimeter of the island and branching into interior forests. Each route is 15 to 22 kilometres, takes 4 to 7 hours, and connects village to village along coastline, oreum parasitic cones, and tangerine groves. The most famous routes are Olle 7 along the Seogwipo coastline, Olle 10 between Hwasun and Moseulpo with the Sanbangsan rock dome, and Olle 6 past the Seopjikoji cape at sunrise. Route maps are free at the Olle headquarters in Seogwipo and hiker certification stamps are collected at 27 blue and orange ribbon checkpoints. A full Olle circuit takes 3 to 4 weeks; most visitors pick one or two routes for a day.

Food on Jeju uses the Korea Strait and the island's unique volcanic soil heavily. Black pork from Jeju's native Heukdwaeji pigs is the headline meat, served as samgyeopsal barbecue on cast-iron grills at places like Donsadon in Jeju City or Chonji Yeonhwa in Seogwipo for about 45,000 won per person including kimchi and lettuce wraps. Galchi hairtail fish sashimi and grilled galchi with radish stew are the island's signature seafood, with Myeongjin Jeonbok in Gujwa and Seongsan Ilchul-bong's harbor dim-sum restaurants leading the list at 60,000 won per person. Jeju tangerines, the golden Hallabong variety, are sold from November through February at roadside stalls and cost 18,000 to 25,000 won per 2-kilogram box. Omegi rice cake and Jeju green tea from O'Sulloc Tea Museum in Seogwang are the main edible souvenirs.

Jeju International Airport (CJU) sits on the north coast inside Jeju City and handles more than 30 million passengers annually, making the Seoul Gimpo to Jeju route the world's busiest air corridor. Domestic flights from Gimpo, Incheon, Gimhae Busan, Daegu and Cheongju run every 10 to 20 minutes through the day, with one-way fares from 45,000 to 120,000 won depending on carrier and season. International direct flights reach Tokyo Narita, Osaka Kansai, Hong Kong, Shanghai Pudong, Beijing, Taipei Taoyuan, Bangkok Suvarnabhumi and Ho Chi Minh City. From CJU arrivals, the Limousine Bus 600 runs to Jungmun and Seogwipo in 90 minutes for 5,500 won. A pre-booked private transfer from CJU to a Jungmun or Seogwipo hotel typically lands at 95,000 to 135,000 won including meet and greet at the arrivals exit.

Getting around Jeju usually means renting a car. Public buses have improved dramatically with the post-2017 network of intercity and circle routes but frequencies remain low outside the main corridors. A compact rental car costs 55,000 to 90,000 won per day including insurance, and an international driving permit is required. The 180-kilometre 1132 ring road circles the island in about five hours of driving without stops. Electric scooters and bicycles are another option for shorter-range exploration. The Jeju City Sightseeing Bus offers a hop-on-hop-off loop through central sites at 12,000 won per day. Taxis are plentiful in Jeju City and Seogwipo but metered fares on long runs to the east and west tips add up quickly.

Museums and theme spots on Jeju are plentiful, a legacy of the island's honeymoon-boom era. Jeju Museum of Art in Jeju City and Kim Young-Gap Gallery Dumoak in Seongsan cover Korean and Jeju-specific visual art with a 2,000 won entry each. Teddy Bear Museum in Jungmun is a kitsch must for kids at 15,000 won. Glass Castle in Hallim exhibits large-scale glass-art installations across 16 themed gardens. Hello Kitty Island and Dinosaur Land draw younger families. The Jeju Folk Village in Pyoseon-myeon recreates 1890s Jeju life across 100 thatched-roof stone-wall houses and offers haenyeo diving demonstrations, rice-cake pounding, and folk-song performances. Jeju National Museum in Jeju City covers island prehistory from 8,000 BC through the Goryeo period with good English signage.

Beaches on Jeju are dramatic but mostly small and rocky rather than long and sandy. Hyeopjae on the west coast is the widest white-sand stretch with an offshore Biyangdo Island view; adjacent Geumneung Beach adds tidepools. Hamdeok Beach on the north coast is a shallow-entry family favourite with clear emerald water and a string of beach cafes. Iho Tewoo Beach close to Jeju City centre is known for its two red-and-white horse lighthouses. On the south coast, Jungmun Saekdal Beach is a surf-beginner stretch fronting the Shinhwa resort complex; Seogwipo Beach is smaller but walkable from the downtown. Water temperatures run 24 to 27 degrees from June through September and drop to 13 to 16 in winter, too cold to swim without a wetsuit.

Nightlife on Jeju concentrates in Jeju City's Yeonhuidong neighborhood around the Nohyeong cluster and in Seogwipo's Olle Sijang night market. Beer-and-soju pubs like Jeju Sansoo Brewery in Aewol and Magpie Brewing on the east coast pour local island-brewed lagers. For a quieter evening, Jeju City's Dongmun Night Market opens 6 pm to midnight with 40 food stalls serving black-pork dumplings, galchi tempura, and cotton candy. On the south coast, Olle Sijang transforms into Nolban Night Market after 6 pm with live performances and street food. Dance clubs are limited but the Hotel Shilla's rooftop bar and the Shinhwa Resort casino bar at Jungmun attract later-evening crowds.

Plan at least four full days on Jeju for the basics. Day one: east-coast loop with Seongsan Ilchulbong sunrise, Udo ferry and buggy, Seopjikoji cape, Manjanggul lava tube. Day two: south-coast Seogwipo with Jusangjeolli, Cheonjeyeon Falls, Oedolgae Rock and a Jungmun beach afternoon. Day three: west-coast Hyeopjae Beach, O'Sulloc green tea museum, Hallim Park, and the Gumjak Oreum sunset. Day four: Hallasan hike via Yeongshil or Seongpanak depending on weather, back to Jeju City for dinner. Stretch to six days if you want to add two Olle Trail walks or a Biyangdo or Marado offshore-island day. Pack hiking shoes, a waterproof light jacket because weather changes fast, and plenty of cash for the roadside tangerine stands.