Jeju is where Korea goes to exhale. A volcanic island floating off the southern coast, it is the country’s honeymoon capital, its favourite holiday escape, and a UNESCO-listed geological wonder all at once. The rhythm here is different from the mainland: black lava-rock walls dividing tangerine groves, a coastline of hidden beaches and sea cliffs, waterfalls tumbling into the surf, and above it all the dormant volcano of Hallasan, South Korea’s highest peak. Reached by a short flight from Seoul or Busan, it is the perfect slow counterpoint to the cities.

Getting there and getting around

There is no rail or road link to Jeju, so you fly. The Seoul to Jeju route is among the busiest air corridors on the planet, with departures every few minutes, so flights are short, frequent and usually inexpensive. Book domestic tickets in advance if your dates are fixed, especially in peak season. Read the transport guide for how the domestic network connects.

Once you land, the single best decision is to rent a car, provided you have sorted the paperwork. Korea requires foreign drivers to carry an International Driving Permit with their own licence and passport, and you must obtain it at home before you travel, because it is not available once you have arrived. With that in the glovebox, Jeju is a joy to drive: it is large, its highlights ring the coast and fill the interior, and the buses, while cheap, are slow for sightseeing. If you do not drive, base yourself in Jeju City in the north or Seogwipo in the south and combine buses, taxis and a guided tour or two to reach the far corners.

The volcano and the lava

Jeju was born of fire, and its volcanic landscape is the headline. Rising from the sea on the east coast is Seongsan Ilchulbong, the “Sunrise Peak,” a dramatic tuff crater you can climb in under an hour for one of the great views in Korea, best at dawn. Beneath the island run some of the world’s finest lava tubes, and the vast Manjanggul tube is open to walk through, a cool, dark, otherworldly tunnel of frozen stone.

At the centre stands Hallasan, a dormant volcano and the highest mountain in South Korea. Serious hikers can summit it in a long day for a look into its crater lake; gentler trails circle its flanks through forest and, in season, azaleas. Even a short walk on its lower slopes shows you why Koreans hold this mountain sacred.

A dark walk-through lava tube cave with rippled stone walls lit by soft lights on Jeju Island, South Korea

Beaches, waterfalls and the coast

Jeju’s coastline is a string of surprises. In the northwest, Hyeopjae and Geumneung beaches pair white sand with turquoise water and a view of a small offshore island. In the east, Woljeongri is a cafe-lined arc of pale sand that has become the island’s fashionable beach hangout.

The south coast is waterfall country. Cheonjiyeon and Cheonjeyeon tumble through lush ravines, while Jeongbang has the rare distinction of falling straight into the sea. Along the coast you may spot the haenyeo, Jeju’s famous free-diving women, some now in their seventies, who harvest shellfish from the seabed without air tanks, a living tradition UNESCO has recognized.

Reach the coast and craters with easeA guided tour or boat trip covers the far-flung sights that are slow to reach without a car

Walking the Olle trails

One of the best ways to feel Jeju is on foot, along the Olle Trails, a network of waymarked coastal walking routes that circle the entire island in numbered sections. Each stretch links beaches, headlands, fishing villages, oreum (small parasitic volcanic cones) and viewpoints, and you can walk as little as an hour or as much as a full day. Pick a coastal section near your base, follow the blue-and-orange ribbons, and you will see the island the way locals do: slowly, at sea level, with the wind and the waves for company.

Where to eat

Jeju’s food is proudly its own. The signature dish is heukdwaeji, the island’s prized black pork, grilled at the table and rich and nutty. From the sea come fresh abalone, served in porridge or grilled, and galchi, silvery hairtail fish, in a spicy stew. The island grows Korea’s tangerines, so hallabong citrus and its juice, chocolates and teas are everywhere.

Do not leave without trying the seafood pulled from the water by the haenyeo divers, often sold and eaten right at the shore. And save room for a cafe stop: Jeju has a booming scene of design-led coffee shops with sea views, a lovely way to punctuate a day of driving.

A grilled Jeju black pork barbecue with fresh lettuce and side dishes on a table by the coast, South Korea

The short version

Fly over from Seoul or Busan, rent a car if you possibly can, and give Jeju three or four unhurried days. Climb Sunrise Peak at dawn, walk through a lava tube, pick a couple of beaches and a waterfall or two, and spend at least a half-day on an Olle coastal trail. Eat the black pork and the fresh abalone, and slow your whole trip down to the island’s pace. Jeju is not a place to tick off. It is a place to let go, and it does the rest.