Eobigyegok Valley of Eobisan Mountain is a geographically important site, as it sets the boundaries for Gail-ri, Seorak-myeon and Yongmun-ri, Okcheon-myeon, Yangpyeong-gun. ‘Eobi’ (meaning ‘fish flying’) is the name given to this valley, where fish can regularly be seen jumping out of the valley's pristine water. It is also an ideal destination for families with children, as the stream is shallow, the water flows at a gentle pace, the temperature is mild and it is full of pretty pebbles.