Jeju-do is South Korea's volcanic island province, sitting 90 kilometres off the southern tip of the peninsula in the Korea Strait. On an island roughly the size of Luxembourg you'll find South Korea's highest peak, one of the world's longest lava tubes, beaches with water that turns extraordinary turquoise in summer, and haenyeo — women free-divers who harvest abalone without scuba gear, a tradition now protected by UNESCO. In July and August, Jeju is the nation's favourite summer destination, and for good reason: the coast is warm and dazzling while the volcanic interior stays cool enough to hike.
Gimpo Airport to Jeju Airport in 75 minutes by air. No passport required for South Korea residents. And a single well-planned day can hit its essential highlights, from a UNESCO-listed volcanic crater at sunrise to coal-grilled black pork at dinner.
Getting there from Seoul
Jeju is an island — there is no direct bus or train. The three realistic options are flying, or combining rail with a passenger ferry, or driving to a southern port and taking a car ferry.
| Option | One-way time | One-way price (₩, per person) | Key note |
|---|---|---|---|
| Fly (GMP or ICN → CJU) | ~1 hr 15 min flight (+ 1–1.5 hr airport time) |
₩50,000–₩170,000 | Budget carriers — Jeju Air, T'way Air — are cheapest. Prices surge sharply in July–August; book 4–6 weeks ahead. Gimpo (GMP) is closer to central Seoul and the more convenient departure point for domestic flights. |
| KTX + Ferry (Seoul → Mokpo → Jeju) | ~8 hr total (KTX ~2 hr 50 min + ferry ~4 hr 30 min) |
~₩77,000–₩105,000 (KTX ~₩47,000 + economy ferry seat from ~₩30,000) |
No airport queues; scenic sea crossing. Mokpo–Jeju ferry runs ~5 times per week (Seaworld Express, Hanil Express) — verify the schedule before booking. Cabin upgrades available at extra cost. |
| Drive + Car Ferry (Seoul → Wando → Jeju) | ~6.5 hr total (drive ~3 hr 30 min + ferry ~2 hr 40 min) |
~₩200,000–₩260,000 (fuel + tolls ~₩50,000 + car + driver ferry from ~₩150,000) |
Only worth it if you genuinely need your own vehicle on the island. Rental cars on Jeju are plentiful and far cheaper. Wando (Hanil Express) operates up to 17 sailings per week. |
Recommendation: Fly — the 75-minute door-to-island experience is unmatched; use Gimpo Airport if you're staying in central Seoul, and book a budget carrier well ahead of July–August travel.
A perfect one day
This route runs east-to-west across the island and requires a rental car (available at Jeju Airport from ~₩45,000–₩70,000/day for an economy vehicle; a physical International Driving Permit from your home country is required alongside your licence). Start before 8am — summer heat peaks after noon, and popular spots fill up fast.
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07:00 — Seongsan Ilchulbong (Sunrise Peak) — 90 min · ₩5,000
A 182-metre volcanic tuff cone that erupted from the sea floor around 5,000 years ago and now forms a dramatic crater-topped peninsula on Jeju's east coast. It is a UNESCO World Heritage Site and one of the most photographed spots in Korea. A well-paved trail winds to the rim in 20–25 minutes; the views over the ocean and the 600-metre grass-lined crater are the reward. Allow 90 minutes total.
- Open 07:10–19:00 in summer (last entry 18:00). Closed 1st Monday of each month.
- The coastal path around the cliff base is free and open to all.
Drive 45 minutes west on Route 1132 to Manjanggul Cave.
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09:30 — Manjanggul Lava Tube — 50 min · ₩4,000
One of the longest lava tubes in the world at 13 km; the open visitor section is 1 km and takes about 40 minutes to walk. The cave stays at 11–21°C year-round, making it a genuine summer respite. The far end is anchored by a 7.6-metre lava column — the world's largest known. No special equipment needed; paths are flat and well-lit.
- Open 09:00–18:00 (last entry 17:00). Closed 1st Wednesday of each month.
- Adults ₩4,000 · Teens and children ₩2,000 · Under 7 and over 65 free.
Drive 20 minutes west to Hamdeok Beach.
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11:00 — Hamdeok Beach — 3 hrs · Free
A crescent of pale sand on the north coast with calm, remarkably clear water that warms to swimming temperature by July. Cafés, seafood restaurants, and convenience stores line the promenade. This is your midday anchor: swim, eat lunch on the promenade (budget ₩12,000–₩20,000), and recharge in the shade. Arrive before noon on weekdays; summer weekends are packed by early afternoon.
- Outdoor showers and changing rooms on-site. No entry fee.
Drive 15 minutes southwest into Jeju City to Dongmun Market.
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14:30 — Dongmun Traditional Market — 60 min · Free entry
Jeju's oldest market, open daily 08:00–20:00 (night market 17:00–21:00), at 20 Gwandeok-ro 14-gil, Jeju-si. Stalls sell hallabong (Jeju mandarin oranges), dried galchi (hairtail fish), black sesame sweets, raw seafood, and island handicrafts. Ideal for edible souvenirs; budget ₩3,000–₩8,000 for market snacks.
Drive 10 minutes or walk 15 minutes to Black Pork Street (Heukdwaejigol).
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16:30 — Dinner on Black Pork Street (Heukdwaejigol) — 90–120 min · ₩36,000–₩66,000 per sitting
Jeju's indigenous black pigs produce distinctly firm, minerally pork grilled tableside over glowing coal briquettes — a flavour entirely different from mainland samgyeopsal. The ogyeopsal cut (five-layered belly, skin on) crisps into something extraordinary. Arrive by 16:30–17:00 to beat the 40–90 minute evening queues. Most restaurants charge ₩36,000 for 400 g (1–2 people) or ₩54,000–₩66,000 for 600 g (2 people), plus side dishes.
- Located near Sinjeju Rotary, Jeju-si — a single street lined with dozens of competing restaurants.
The area in 60 seconds
Jeju is a shield volcano roughly 1.8 million years in the making, its surface carpeted with 360 parasitic cinder cones called oreum, and its heart dominated by Hallasan (1,950 m) — the highest peak in South Korea and a dormant stratovolcano that last erupted around 1,000 years ago. The island earned three UNESCO designations: Biosphere Reserve (2002), World Heritage Site (2007), and Global Geopark (2010), making it one of a tiny number of places on Earth to hold all three. The haenyeo diving culture was separately added to UNESCO's Intangible Cultural Heritage list in 2016.
Culturally, Jeju was once the independent kingdom of Tamna — legend says founded when three demigods named Go, Yang, and Bu emerged from holes in the earth at the site now called Samseonghyeol. Tamna was absorbed into the Goryeo dynasty in 938 and later used as a Mongol horse-breeding base in the 13th–14th centuries. The island's semi-isolation forged a distinct identity: its own near-extinct language (Jejueo), a matriarchal free-diving tradition, and a cuisine built around volcanic-soil produce, pork, and the sea — rather than the rice paddies and mountain greens of the mainland. Every July and August, the population swells as the rest of Korea heads south to its shores.
Where to eat
| Restaurant | Signature dish | Price range | Location |
|---|---|---|---|
| Donsadon (돈사돈) | Jeju heukdwaeji ogyeopsal — coal-grilled five-layer black pork belly, skin on | ₩36,000 (400 g) · ₩54,000–₩66,000 (600 g) | Jeju-si, Sinjeju area (Black Pork Street). Famous enough to draw long evening queues; arrive before 17:00. |
| Jamae Guksu (자매국수) | Gogi-guksu — Jeju's pork bone noodle soup in a rich, milky broth; the island's beloved lunch staple | ₩8,000–₩9,000 per bowl | Jeju-si (central Jeju City). One of the most well-known noodle shops on the island; expect a short queue at lunchtime. |
| Myeongjin Jeonbok (명진전복) | Abalone porridge (jeonbok-juk), grilled abalone, raw abalone — the menu is just four abalone dishes, each impeccably done | ₩15,000–₩40,000 per person | Gujwa-eup, Jeju-si (north coast, ~20 min from Manjanggul Cave). Reservations strongly recommended. |
| Chunsimine (춘심이네) | Galchi-gui — whole grilled hairtail (cutlassfish), Jeju's silver-skinned signature fish, served in jaw-dropping full-length display | ₩20,000–₩30,000 per portion | Jeju-si (central Jeju City). Look for whole fish displayed upright outside the entrance. |
| Hyeopjae Haenyeoui Jip (협재해녀의집) | Raw abalone, sea urchin bibimbap, haenyeo-style seafood ramen — produce pulled from the sea that morning | ₩15,000–₩35,000 per person | Hyeopjae Beach, Hallim-eup (west coast). A walk-up hut run by local haenyeo divers; no reservations, cash preferred. |
Know before you go
- You need a rental car. Public buses connect major towns but make multi-stop day-tripping slow and impractical. Rental cars at Jeju Airport start from around ₩45,000–₩70,000 per day for an economy vehicle. You must have a physical International Driving Permit (IDP) issued in your home country before departure — digital copies are not accepted, and it cannot be obtained inside Korea. South Korea recognises IDPs issued under the 1949 Geneva Convention; permits from China and Indonesia are not accepted for rentals.
- Typhoon season is real and disruptive. July through September puts Jeju squarely in the typhoon track. Flights cancel with little notice when storms approach, and sea conditions can close beaches or cancel ferries for 24–48 hours at a stretch. Check weather forecasts 48 hours before travel, build flexibility into your schedule, and take out travel insurance before you depart.
- Book the Hallasan summit trail months ahead. If you want to hike to the crater lake (Baengnokdam) via the Seongpanak or Gwaneumsa trails, a reservation is required. Slots open on the 1st of each month for the following month at the official Hallasan reservation site (visithalla.jeju.go.kr). Day-hike trails — Eorimok and Yeongsil (3–5 hrs round-trip to a ridge viewpoint) — are walk-up and free with no permit needed.
- Peak season means peak prices and crowds. July and August are the most expensive weeks of the Jeju year. Accommodation costs 30–50% more than shoulder season; restaurants on Black Pork Street queue 1–2 hours on summer evenings (arrive before 17:00); and popular beaches fill by mid-morning on weekends. Book flights, accommodation, and car rental at least 4–6 weeks ahead. Weekday visits are noticeably calmer than weekends.