Jusangjeolli Cliff

Jusangjeolli Cliff in Jeju is a kilometer of hexagonal basalt columns formed when a lava flow off Mount Halla met the cold ocean and cracked into tidy six-sided pillars as it cooled over more than a hundred thousand years. The guide traces how that fracture pattern built a coastline geologists compare to Ireland's Giant's Causeway, and follows the haenyeo divers who still work these waters for abalone and octopus. Stand at the rail and watch the waves crash into these stone steps, throwing spray into the air.