Hwanggeumgul Lava Tube (Hallim Park)

Hwanggeumgul Lava Tube (Hallim Park) is a remarkable lava tube that, along with Hyeopjaegul, Socheongul, and Ssangyonggul, forms the Jeju Island Lava Tube System (Natural Monument No. 236). The cave spans approximately 180 meters in length. Located near the boundary behind the exit of Ssangyonggul within Hallim Park, the entrance is situated within a fenced area where public access is restricted, and it is currently managed as a private, closed-access cave.