Jeju Bonnyeon Black Pork Seongsan Main Branch is a restaurant in Seongsan, Seogwipo, Jeju, near Seongsan Ilchulbong, that grills black pork. The black pork is defined by a firm, chewy texture and a savory taste rather than the deep flavor of aging. The dining room is clean, and staff grill the meat from start to finish. Prices run high for a tourist area.