Ilchul Land is a lovely place to take a breather. Have a picnic, amble around the grounds or just lie on the cool grass and shut your eyes for a while.
When you've spent some time at this recreation and green space in Seongsan, why not check out Seopjikoji, Pyoseon Beach, and Sukji Koji Beach? They're not too far from Ilchul Land and also popular with tourists.