Jeju: Yongmeori Coast tuff cliffs, Sanbang-san

Where: East Asia · Asia · approx. 33.23, 126.31 (vicinity only)

Why this spot: Rockhounding locality: some of the oldest exposed volcanics on Jeju, a wave-cut tuff ring walk below Sanbang-san on the island's southwest coast

What turns up: eyes-only: layered tuff, concretions, honeycomb weathering, shell-bed traces

Access: Restricted.

Protected geopark geosite with paid entry; the walk closes at high tide and in swell, and hammering or removing rock is prohibited, eyes-only

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.