Shan Hai Guan Coffee Estate. Shan Hai Guan Estate Coffee is located at the summit of Huashan in Gukeng, Yunlin. The breathtaking panoramic views are just a stone's throw away. The unique coffee-growing environment yields coffee of proud and outstanding quality. Shan Hai Guan Estate Coffee is located at the summit of Huashan in Gukeng, Yunlin. The breathtaking panoramic views are just a stone's throw away. The unique coffee-growing environment yields coffee of proud and outstanding quality. Address: 雲林縣斗六市雲林縣斗六市中堅東路10號 Hours: 00:00–23:59 Yunlin