Chaeseokgang Cliff (Jeonbuk National Geopark) (채석강 (전북 서해안권 국가지질공원))

Chaeseokgang is a coastal cliff in Buan registered as a UNESCO Global Geopark site (part of Jeonbuk West Coast Geopark), with dramatic horizontal sedimentary rock layers exposed by sea erosion. The cliff resembles stacked books or 'a thousand-volume library,' which is the literal meaning of the name. Walking the rocky shore at low tide reveals the geological details up close. For travelers serious about Korean geological destinations and willing to engage with serious natural-history content, Chaeseokgang is one of the strongest single anchors. Best at low tide for full access.