Hyeopjaegul Lava Tube (Hallim Park) (협재굴(한림공원))

Hyeopjaegul Lava Tube is one example of the lava tube systems of Jeju Island, along with Hwanggeumgul, Socheongul, Ssangyonggul and Manjanggul Lava Tubes. The cave is approximately 200 meters in length, 10 meters in x_width and 5 meters in x_height. It is thought to have been created by the lava that erupted from Hallasan Mountain some 25 million years ago. This cave uniquely contains features of both lava and limestone caves. The entire area surrounding the cave is a huge stratum of seashells a...