My friends and I are going to spend 8D7N at Busan. We are planning our itinerary now. Some forumers mentioned that it'll be boring to spend so many days in Busan. We are thinking of whether we should go Jeju-do, but it seems like the flight ticket is limited and not cheap. So, another option we can think of is to visit places near Busan, maybe a day trip or spend a night then back to Busan the next there.
I would like to know is there any such places we can visit? any place with nice scenery?