Jeju Island: South Korea’s Volcanic Subtropical Escape

Jeju-do is a 1,848 square kilometre volcanic island 90km off the southern coast of South Korea. It’s the country’s largest island and its own province, with a distinct dialect, culture, and geology. The island centres on Hallasan, an extinct shield volcano at 1,947 metres (the highest mountain in South Korea), ringed by lava fields, lava tubes, and a coastline of black basalt cliffs and teal water. UNESCO recognised it as a World Natural Heritage Site in 2007.

Jeju receives around 15 million visitors annually, predominantly Korean domestic tourists and Chinese visitors. The infrastructure for tourism is therefore comprehensive but can feel packaged. Independent exploration rewards visitors who get off the main circuits.

Natural Sites

Seongsan Ilchulbong (Sunrise Peak) is a tuff cone formed by an underwater eruption roughly 5,000 years ago. The crater at the top is 590 metres wide and still largely intact. The walk to the summit takes 30-40 minutes; the views from the crater rim cover the eastern coastline and the sea. It’s best seen at sunrise (hence the name), which requires arriving in pre-dawn darkness. Admission KRW 2,000.

Manjanggul Lava Tube is 13.4km long, one of the world’s longest lava tubes. Only 1km is open to visitors; the ceiling reaches 30 metres in places. Temperature stays at 11 degrees Celsius year-round. Admission KRW 4,000. The 30-minute walk through is unlike any cave experience in mainland Korea.

Jeju Olle Trails are 26 designated walking routes totalling 437km around the island’s perimeter and interior. Individual routes range from 6km to 18km and are marked with turquoise ribbons. Route 1 (Seyongpo-ri to Seongsan, 15km) and Route 7 (Seogwipo waterfall area) are the most recommended for first-time visitors. The official Jeju Olle website has current route information and maps in English.

Food

Jeju black pork (heukdwaeji) is the local speciality: a breed of black-coated pig historically raised on Jeju, served as samgyeopsal (thick-cut belly grilled at the table). The best black pork restaurants are in the Sinhwa World area and the old town of Jeju City near the black pork street (Heukdwaeji Golmok). A full meal with sides and soju runs KRW 30,000-45,000 for two.

Haenyeo (women divers, a Jeju tradition going back centuries) still dive in several coastal villages. The Haenyeo Museum in Gujwa-eup tells the history of the practice with underwater footage; the museum costs KRW 1,100. Actual haenyeo sell their catch at several seafood restaurants along the Seongsan and Hamdeok beaches; abalone (jeonbokjuk, abalone porridge) is the dish to order.

Where to Stay

Jeju City in the north is the main transport hub with the widest accommodation range. Lotte City Hotel has doubles from KRW 120,000-180,000, convenient and reliable. Seogwipo on the southern coast is quieter and better positioned for waterfalls and the southern trail routes; Hyatt Regency Jeju overlooks the cliffs from around KRW 250,000/night.

Budget: guesthouses (yeogwan) throughout the island offer clean rooms from KRW 50,000-80,000/night.

Getting There and Around

Jeju International Airport (CJU) receives flights from Seoul Gimpo (1 hour, around KRW 50,000-120,000 one-way), Busan, and several other Korean cities. A car is essential for seeing the island beyond the main tourist circuits; rates start from KRW 40,000/day. The bus network covers the major sites but is slow and infrequent outside central areas.