Seongsan Ilchulbong, a tuff cone on Jeju Island, South Korea

Seongsan Ilchulbong, a tuff cone on Jeju Island, South Korea

© Quynh Anh Nguyen/Getty Images - 2023-08-27

water water resources natural landscape coastal and oceanic landforms terrain mountain landscape slope headland klippe island lake geology bird's-eye view peninsula cape coast rock reservoir spit ocean escarpment bay cliff aerial photography inlet sound hill beach promontory river island cove estuary sea raised beach