Jeju Itinerary Sanbangsan Mountain is a bell-formed lava mountain situated around the Yongmeori Coastline. It is definitely not a mountain in the standard sense, but a mound of dried lava. Sangbangsan was shaped some 700,000 or so several years back which is the result of violent volcanic action. Jeju Island https://vons864xjt6.wikilima.com/user