Dokkaebigol Sky Valley Haerang Observatory in Donghae, Gangwon-do, South Korea Dokkaebigol in Donghae, Gangwon-do is a beautiful travel destination with the Haerang Observatory and Sky Valley. The view of the blue East Sea from a high place, the clean air, and the sea breeze are impressive. From Mukho Lighthouse, you can enjoy a mag
