Jeju Island Complete Travel Guide — Everything You Need to Know

This Jeju Island Complete Travel Guide — Everything You Need to Know is the one resource I wish someone had handed me the very first time I stepped off the plane at Jeju International Airport, squinting into the subtropical sunshine with absolutely no idea that this volcanic island would end up being one of my favourite places on the entire Korean peninsula. Jeju is genuinely unlike anywhere else in Korea — the air smells of salt and tangerine blossoms, the dialect sounds almost like a foreign language even to mainland Koreans, and the landscape swings between dramatic lava-rock coastlines, pristine waterfalls hidden inside cedar forests, and the cloud-scraping summit of Hallasan, all within a single day’s drive. There is a reason this island earned UNESCO Triple Crown status — World Natural Heritage, Biosphere Reserve, and Global Geopark — and once you arrive, you will feel every bit of that designation without even trying.

What I love most about Jeju travel is the way the island rewards the curious and punishes the lazy planner equally. If you book a generic tour bus and tick off the Instagram spots in two days, you will leave thinking “nice, but overrated.” But if you rent a car, eat at the haenyeo (female sea diver) grandmothers’ restaurants along the eastern coast, watch the sunrise from Seongsan Ilchulbong before the tour groups arrive at 9 a.m., and wander through a lava tube with only a handful of other visitors — that Jeju stays with you for years. This guide covers getting here, getting around, where to stay by neighborhood, what to eat, and exactly which Jeju attractions are worth your limited, precious time.

Getting to Jeju Island — Flights, Ferries, and the Smartest Arrival Strategy

Flying is almost always the right call for a Jeju trip. The Seoul–Jeju air route has consistently ranked among the world’s busiest, which is actually great news for your wallet — fierce competition between Korean Air, Asiana, Jeju Air, Tway, and Jin Air keeps prices surprisingly reasonable. If you book two to three weeks in advance, you can grab a round-trip ticket from Gimpo Airport (GMP) for as little as ₩60,000–₩90,000 (~$45–$68 USD) on a budget carrier. Flying from Gimpo rather than Incheon saves you the long subway commute out to ICN — from central Seoul, Gimpo is on Line 5 and the AREX Gimpo branch, roughly 30–40 minutes from Hongdae or Yeouido. The flight itself is only about 55 minutes, so you truly can have breakfast in Seoul and lunch on the island. If you are already in Busan, KTX to Mokpo and then a high-speed ferry is a scenic alternative — the Mokpo–Jeju ferry takes about 4.5 hours — but honestly, just fly unless you have a specific reason for the boat.

Once you land at Jeju International Airport (CJU), the most important decision you will make is about transportation. Jeju has public buses — the 101 express bus and the intercity network are actually decent — but the island is genuinely too spread out and too rewarding off the main roads for buses alone to do it justice. I rent a car every single time I visit, full stop. Rental desks are right inside the arrivals hall; expect to pay ₩50,000–₩80,000/day (~$38–$60) for a standard compact. Book through Lotte Rent-a-Car or SK Rent-a-Car websites in advance for better rates. One insider note almost no guide mentions: fuel up at the GS Caltex on the eastern side of the island near Seongsan — it tends to be ₩30–₩50 cheaper per liter than the touristy stations near Jungmun Resort.

The Best Things to Do on Jeju Island — Beyond the Tourist Checklist

Every Jeju travel itinerary rightly includes Seongsan Ilchulbong — the “Sunrise Peak” tuff cone rising straight from the ocean on the eastern tip — but the difference between a tourist experience and a real one is entirely about timing. The entrance fee is ₩2,000 (~$1.50) and gates open at 7 a.m. (earlier in summer). Be walking up the crater ridge by 6:50 a.m. and you will have the entire panoramic bowl of the crater mostly to yourself for about twenty minutes before the tour buses deposit their passengers. That silence, with nothing but seabirds and the smell of ocean wind, is something I genuinely look forward to every time I visit. The hike up takes about 20 minutes at a normal pace.

Hallasan National Park is the island’s beating volcanic heart, and hiking it properly requires a full-day commitment. The Gwaneumsa Trail on the northern flank is significantly more dramatic than the heavily trafficked Seongbaekno Trail — it takes you through deep forest ravines, past ice-cold mountain streams, and up into