Korea (South)-4-day-itinerary
South Korea runs on precision: the trains leave on time, the Wi-Fi works underground, and the airport at Incheon has been ranked the world’s best for more than a decade. Four days is a tight frame for a country this layered, but it is enough to move through Seoul, drop into ancient Gyeongju, and finish in Busan with salt on your shoes.
Visas and Entry
Citizens of most Western nations (including the US, UK, EU countries, and Australia) enter South Korea visa-free for stays up to 90 days. Since January 2024, K-ETA (Korea Electronic Travel Authorization) has been waived for most eligible nationalities until at least the end of 2025. Check the official Hi Korea immigration portal for your specific nationality before departure, as the waiver list updates.
Day 1: Seoul, Palaces and Myeong-dong
From Incheon International Airport, take the AREX Express Train to Seoul Station. The express service costs around 9,500 KRW (approximately $7 USD), takes 43 minutes, and departs every 20-40 minutes. The all-stops commuter version costs roughly 4,500 KRW but takes closer to 60 minutes and is crowded during rush hour. Both options are vastly more reliable than a taxi in peak traffic.
First stop: Gyeongbokgung Palace. A standard adult ticket is 3,000 KRW; the combo ticket covering four other major palaces and Jongmyo Shrine runs 10,000 KRW and is worth every won if you have the time to use it. The Changing of the Royal Guard ceremony takes place at 10:00 AM and 2:00 PM at the Gwanghwamun Gate. The palace is closed on Tuesdays. Hanbok rental is available from stalls just outside the main gate for around 15,000-20,000 KRW per hour; wearing traditional dress gets you free admission.
Evening in Myeong-dong: this is a legitimate shopping district for Korean skincare and cosmetics (prices here are often significantly cheaper than duty-free), though the sit-down restaurants in the main drag run tourist prices. Eat instead from the street stalls running through the centre: egg bread (gyeran-ppang), tteokbokki (spicy rice cakes), and tornado potatoes are all under 3,000 KRW each. This is one of the few global cities where street food quality and convenience food quality are roughly equal.
Day 2: Seoul to Gyeongju
The KTX high-speed train from Seoul Station (or Suseo Station in southeastern Seoul) to Singyeongju takes approximately 2 hours. Economy fares run around 50,000-60,000 KRW one-way. Book on Korail’s website or at the station; trains fill up on weekends, so check availability a few days before.
Gyeongju was the capital of the Silla Kingdom for almost a thousand years, until 935 AD, and the city sits on so much archaeology that UNESCO designated not just individual sites but the entire historic area as a World Heritage landscape. It is a genuinely unusual place: burial mounds the size of small hills dot the city centre, and you walk around rather than past them.
Bulguksa Temple, around 16km from Gyeongju city centre, is the most visited site and worth the trip despite the crowds. Admission was made free as of 2023 (confirm at the gate as policies occasionally change). Get there by bus 10 or 11 from Gyeongju Bus Terminal, about 40 minutes and 1,500 KRW. If you make just one detour from the temple, take the uphill walk to Seokguram Grotto (5,000 KRW), a stone rotunda sheltering an 8th-century granite Buddha of exceptional quality. Most tour groups turn back at the temple.
The best time to be in Gyeongju is spring (late March to early May) for cherry blossom, or October for maple foliage. The Cheomseongdae observatory in the city centre, built in 647 AD and one of the oldest surviving astronomical observatories in Asia, is free to walk past and genuinely atmospheric at dusk.
Stay overnight in Gyeongju rather than rushing back to Seoul. Small guesthouses near the Tumuli Park burial mound area cost around 50,000-80,000 KRW per night and give you the city in the early morning before tour buses arrive.
Day 3: Busan
The KTX from Singyeongju to Busan takes roughly 25 minutes; local trains run more frequently and take about an hour for a much lower fare. Busan is Korea’s second city and its most underrated, a port town built vertically up coloured hillsides with a food culture that rivals Seoul in quality and beats it on price.
Start at Jagalchi Fish Market, Korea’s largest seafood market, open from 5:00 AM to 10:00 PM. The ground floor is a live market where ajummas (market ladies) display the morning catch: crab, octopus, sea cucumber, and shellfish arranged in tanks. Buy what you want, carry it upstairs, and a restaurant on the upper floor will cook it for a small fee. The free rooftop terrace above the market offers views across Busan Port and the hillside neighbourhoods that make the city’s skyline distinctive. Take Line 1 to Jagalchi Station (Exit 10).
Haeundae Beach is a 30-minute metro ride northeast and worth the trip, though in July and August the sand is largely occupied by beach umbrellas and tourist operations. The better local alternative is Gwangalli Beach, slightly smaller and much less commercial, with a direct view of Gwangan Bridge lit at night. The Millak Raw Fish Center (Millak Hoe Center) near Gwangalli Beach is a multi-storey seafood building where locals buy raw fish on the ground floor and take it to the restaurants upstairs for cooking at a small service fee. This is the authentic version of the Jagalchi experience.
Busan’s signature food: dwaeji gukbap, a pork bone soup served with rice, which locals eat for breakfast. Order at any of the restaurants around Busan Station marked with the dish. Cost: around 10,000-12,000 KRW.
Day 4: Return to Seoul and National Museum
The KTX from Busan to Seoul runs approximately every 20-30 minutes and takes 2 hours 15 minutes; book a morning train to maximize the afternoon. The National Museum of Korea in Yongsan (free admission) is one of the largest in Asia and mercifully uncrowded by midday. The collection spans prehistoric artefacts through the Joseon dynasty. The Buddhist sculpture gallery on the third floor, which includes two National Treasures in gold, is worth the visit on its own.
For a final Seoul meal, go to Gwangjang Market in Jongno-gu: this is one of the oldest traditional markets in Korea (established 1905), with a covered food hall where vendors have occupied the same stalls for generations. Bindaetteok (mung bean pancakes), mayak gimbap (small sesame-seed rice rolls), and yukhoe (seasoned raw beef) are the things to order. Budget 20,000-30,000 KRW for a full spread.
Transport Card
Pick up a T-money card from any convenience store (CU, GS25, 7-Eleven) for 3,000 KRW and top it up with cash. It works on all buses, metro lines, and some taxis across Seoul, Gyeongju, and Busan, and gives a small transfer discount. It is the single most useful purchase of the trip.
Money
Most mid-range restaurants and all convenience stores accept cards. Markets and street food stalls are cash-only. Carry 30,000-50,000 KRW in small notes at all times. Withdrawal fees at Korean ATMs are minimal; machines at convenience stores (especially GS25 and 7-Eleven) accept foreign cards reliably.
Tipping
Tipping is not expected and can cause mild confusion. Exceptional restaurant service is acknowledged with a verbal thank you, not cash on the table. This applies everywhere from street stalls to hotel restaurants.
The practical rule for this itinerary: book the KTX trains before you book anything else. Routes between Seoul, Gyeongju, and Busan sell out on weekends and national holidays, and the rest of the trip fits naturally around train times.