Banyan Tree Kou Zai Dia. Banyan Tree Oyster Cakes has been a street vendor on Yufeng Street in Caotun for over 60 years, and is a long-standing stall that many Caotun residents have grown up eating. Banyan Tree Oyster Cakes has been a street vendor on Yufeng Street in Caotun for over 60 years, and is a long-standing stall that many Caotun residents have grown up eating. Many Caotun residents come here in the afternoon to enjoy hot oyster cakes, meat cakes, and fried sweet potatoes. As a local, affordable delicacy, it is well worth foodies stopping by to try. Address: 南投縣草屯鎮玉峰街92號 Hours: 00:00–23:59 Nantou