Hallim Park is incredibly huge and has tons of things to offer. From waterfalls, to bird exhibitions, as well as plant nurseries and caves, this place is great to spend a relaxing afternoon at! It is an incredibly huge area so I would suggest apportioning at least half a day to explore the area. As I went with a day tour, I had to leave after 2 hours which was highly inadequate in my opinion. Highly recommended place with lots to be done here. There's also cafes in this park so food is not an issue! (: