Sanbonguri is an old restaurant in Pohang that serves gaebokchi daechang gui. The gaebokchi daechang is seasoned and grilled over charcoal, with a chewy texture between beef tripe and beef large intestine. Ingredients are bought at the market each day, and the gochujang and ganjang for the seasoning are made in-house. The owner runs the place alone, so orders are difficult to place when customers crowd in.