This is the order the 10-day departures run: days 1 to 3 set up the capital and the border, days 4 and 5 belong to Jeju, and the second half works back across the southeast and the eastern mountains before the airport run. The first five days move you by air and the last five by road, which decides what goes in the day bag and what stays in the suitcase.
Day 1: Incheon to Seoul
Planes land at Incheon International Airport, where a representative meets you and drives you into Seoul. Nothing else is scheduled. No meals are included, so dinner is your own call, and the first night is usually the Orakai Daehakro or a hotel of the same class. Keep the evening short: pickup on day two comes between 08:30 and 09:00.

Day 2: Palaces and the Folk Village
Breakfast at the hotel, then a city morning that runs Jogyesa Temple, Gyeongbokgung Palace, the Royal Guard Changing Ceremony, and the National Folk Museum in that order. Tuesdays swap Gyeongbokgung for Deoksu Palace, which matters if the guard ceremony is the reason you came. A Seoul tour then adds a ginseng or amethyst stop before the drive out to the Korean Folk Village, an hour and a half away, where about 260 types of traditional houses from the late Joseon period fill the grounds.
Day 3: The DMZ, Then Jeju
An 08:00 pickup for the half-day border run. Bring your passport, since it is checked on the way in, and note the route closes on Mondays and national holidays. The stops are Imjingak Park, the Unification Bridge, the DMZ theater and exhibition hall, the 3rd Infiltration Tunnel, Dora Observatory and Dorasan Station. The coach drops you at Seoul City Hall, a driver moves you to Gimpo Airport, and the flight to Jeju ends with a transfer to the Grand Hyatt Jeju or similar.

Day 4: Jeju's West and South Coasts
A full day on the island, and the gentler of the two. Hyupjae Beach comes first, then Hallim Park, which strings together Palm Tree Road, a stone and bonsai garden, a water garden, and a subtropical botanical garden in one stop. The O'sulloc Tea Museum opened in 2001 under Amore Pacific to explain Korean tea and its ceremony, and it is the indoor break of the day. The Sanbang Mountain cruise and Cheonjeyeon Falls follow; the falls run in three sections and the island calls them the Pond of God. A shopping stop closes the loop.
Day 5: Crater Peak and the Women Divers
Seongeup Folk Village opens the morning, then the Haenyeo Museum, which documents the island's women divers, whose culture is UNESCO-listed. Seongsan Ilchulbong is the highlight of the trip: a crater rim 180 meters above sea level, pushed up by a magma flow under the sea more than 5,000 years ago, on ground that was a separate island until sand and soil joined it to Jeju. Manjanggul, a lava tube formed over 100,000 years ago, comes next, then the flight to Busan and the Avani Central Busan or similar.
Day 6: Busan, Then Gyeongju After Dark
Haeundae Beach is 1.5 kilometers of sand between 30 and 50 meters wide, and it starts the day. The drive along Dalmaji-gil Road leads to Haedong Yonggungsa, the temple on the northeast coast, and Gamcheon Culture Village follows, houses stacked staircase-fashion on the hillside. Jagalchi, the largest seafood market in the country, and BIFF Square fill the afternoon. A 1.5-hour drive then reaches Gyeongju, where Donggung Palace and Wolji Pond are lit for the evening. A Busan tour handles the driving between those stops, which on your own would eat most of the day.

Day 7: Gyeongju, a Museum Without Walls
The guide meets you at 08:30. Gyeongju was the Shilla capital from 57 BC and held that role for about a thousand years, which is why the sights sit so close together. The morning runs the Gyeongju National Museum and Cheomseongdae Observatory, then Seokguram Grotto, a granite temple on the eastern peak of Mt. Toham with the Bonjon statue and his disciples inside the round main hall. Bulguksa Temple, the other World Heritage stop of the day, ends the sightseeing before the drive to Daegu for the night.
Day 8: Haeinsa, Andong and the Road East
Two of the five World Heritage sites on this route land on the same day. Haeinsa Temple comes first, then Andong Hahoe Folk Village, where the village layout and the houses are the exhibit rather than any single hall. The day is mostly road with long stops, and it ends east of Andong.
Day 9: Mt. Seorak and Back to Seoul
Seoraksan National Park takes the morning, with trails from the entrance and a temple stop near the base. The drive back to Seoul fills the afternoon, and the last night returns you to the same hotel class you started in.
Day 10: The Airport Run
Breakfast, then a hotel pickup timed to your flight and the transfer to Incheon International Airport. The trip ends where it began, so a same-day connection home is easy to plan. Confirm the pickup time at the desk the night before.