Day 1:
Morning: Arrive at Seoul Incheon International Airport, take ** Pass to Myeongdong, check in at the hotel.
Noon: Enjoy lunch at a restaurant near Myeongdong, where Korean barbecue, fried chicken, and other delicacies are recommended.
Afternoon: Head to Myeongdong shopping district for some shopping with a wide range of fashions, beauty products and Korean souvenirs.
Evening: Experience Korean nightlife with snacks such as tteokbokki and fish cakes at the night market near Myeongdong.
Day 2: Morning: Head to Namsan Tower and take the cable car or elevator to the top floor for a panoramic view of downtown Seoul.
Noon: Enjoy lunch at a restaurant near Namsan Tower, where it is recommended to try traditional Korean food such as bibimbap, ginseng chicken soup, etc.
Afternoon: Head to Seoul Tower Observatory to enjoy the sunset and night view.
Evening: Experience Korean nightlife at a bar or nightclub near Itaewon.
Day 3: Morning: Take the ** pass tool to Busan and check in at the hotel.
Noon: Enjoy lunch at a restaurant near Haeundae in Busan, where it is recommended to try seafood delicacies such as sashimi, grilled fish, etc.
Afternoon: Head to Busan Beach to enjoy the sun, sand and sea bathing.
Evening: Taste snacks such as grilled corn, kebabs, and more at the night market near Haeundae.
Day 4: Morning: Head to Busan Beomosa Temple to see the ancient buildings and Buddha statues in the temple.
Noon: Enjoy lunch at a restaurant near Beomosa Temple, where it is recommended to try traditional Korean vegetarian foods such as somen noodles, tofu soup, etc.
Afternoon: Head to Taejongdae to enjoy the sea and mountain views.
Evening: Taste traditional Korean food such as barbecue, seafood pot, and more at a restaurant near Taejongdae.
Day 5: Morning: Take ** Tong tool to Gangwon-do and check in at the hotel.
Noon: Enjoy at a restaurant near Gangwon-do.
The following ** is for reference only, the actual ** may fluctuate due to season, market demand and other factors).
Personal opinion, FYI!