The Best Cities to Visit in South Korea: Where to Go and Why

South Korea packs a lot into a compact country: a megacity that barely sleeps, a seaside city with its own swagger, a former royal capital dotted with burial mounds and a volcanic island that feels a world away. Fast trains and short flights mean you can see several of them in one trip without losing days to travel.

Seoul: the capital that does everything

Seoul suits almost everyone, from first-timers to food lovers and night owls. Joseon-era palaces sit a short walk from glass towers, and each neighbourhood has its own personality: Insadong for tea houses and craft shops, Hongdae for buskers and indie bars, Seongsu for converted warehouses and cafés, Gangnam for polished shopping streets.

• Highlights: Gyeongbokgung Palace and the hanok lanes of Bukchon by day, then sunset on Namsan with N Seoul Tower lit up above you.
• Good to know: give it at least three or four days. The subway is excellent, but the city is vast and crossing it takes time.

Busan: beaches, seafood and hillside villages

Korea's second city wraps around bays and hills on the south-east coast and moves at a gentler pace than the capital. It suits beach lovers, seafood fans and anyone who likes a sea view at the end of the street.

• Highlights: Haeundae Beach, Gwangalli with its bridge lit up after dark, the pastel houses of Gamcheon Culture Village and Haedong Yonggungsa, a temple perched on rocks above the waves.
• Good to know: stay near Haeundae for the beach, or around Seomyeon and Nampo for food, markets and transport links.

Gyeongju and Jeonju: history and hanok

Gyeongju was the capital of the Silla kingdom for close to a thousand years, and grassy royal tombs rise between its houses. It suits history lovers, cyclists and anyone wanting a slower rhythm. Don't miss Bulguksa Temple and the Seokguram Grotto, both UNESCO-listed, or Wolji Pond reflecting its pavilions at night. The centre is flat, so a rented bike is the ideal way to get around.

Jeonju has a Hanok Village of hundreds of tiled-roof houses, many now guesthouses, tea rooms and craft workshops. It suits food travellers and anyone keen to sleep on a heated ondol floor. Eat bibimbap in the city that made it famous, and come midweek if you can, as weekends fill up with day-trippers in rented hanbok.

Jeju: the volcanic island

Jeju is South Korea's holiday island, a short flight from Seoul or Busan, with black lava-rock coastlines, tangerine farms and a milder climate than the mainland. It suits hikers, couples, families and road-trippers.

• Highlights: sunrise from the crater rim of Seongsan Ilchulbong, the Manjanggul lava tube and sections of the Jeju Olle coastal walking trails. Hallasan, the country's highest peak, makes a full-day hike.
• Good to know: buses cover the island, but a hire car makes beaches, waterfalls and coastal cafés far easier to reach.

Worth a detour: Sokcho and Suwon

Sokcho, on the east coast, is the gateway to Seoraksan National Park, famous for granite peaks and fiery autumn colours, and its harbour market is full of fresh squid and seafood. Suwon, just south of Seoul and reachable by subway, is home to Hwaseong Fortress, an 18th-century wall you can walk around in a couple of hours. It's an easy day trip for history fans on a tight schedule.

How the cities link up

The KTX high-speed train is the backbone of most itineraries. Seoul to Busan takes roughly two and a half hours, and Gyeongju has its own KTX station on the same line, so it's easy to break the journey. Jeonju is roughly two hours from Seoul by train. Sokcho has no railway, but express buses from Seoul get you there in around two and a half hours, traffic permitting. For Jeju you'll fly, with frequent departures from Seoul's Gimpo Airport and from Busan.

A classic first loop runs Seoul, Gyeongju and Busan, then a flight to Jeju and back to Seoul. With ten days or more, you can add Jeonju or Sokcho.

Stay connected in South Korea

City-hopping means juggling train times, bus terminals and a new neighbourhood every couple of days, and Korea's own map apps, Naver Map and KakaoMap, give far better walking directions here than global alternatives. A HelloSIM eSIM is data-only: you install it at home before you fly and it connects once you land, while your own number stays in your phone for calls and texts. If Korea is one stop on a longer trip around Asia, the Asia Pacific regional plan covers several countries on a single eSIM.