Geomunoreum Lava Tube [UNESCO World Natural Heritage Site] (거문오름 [유네스코 세계자연유산])

Geomunoreum Lava Tube stands out as one of the distinct oreum (the Jeju language term for parasitic cones) on Jeju Island, marked by its extensive network of around 20 lava tubes running through the volcanic structure. This site is not only a geological marvel but also a sanctuary for diverse biological species. Visitors begin their journey at the Jeju World Natural Heritage Center, from where a path leads directly to the Geomunoreum Lava Tube. It is important to note that prior reservations are required to visit. The significance of this location as a key geological feature was recognized when it was designated as a UNESCO World Natural Heritage Site in 2007. Additionally, an international trekking event is hosted annually to celebrate its global importance.