Seonnyeotang is a group of pure rock pools in which you can swim or snorkel. It's also a locale where you can look at Oedolgae Rock. It is open all 12 months round.Manjanggul Cave, one of the earth's longest lava tubes, stretches above 7km. The 1km section open to visitors capabilities extraordinary lava formations and a relentless 11-fourteen°C t