Located in Puli, Nantou, the “Guo Bao Enzyme Tourism Factory” is a tourist factory with organic enzymes as its theme. Visitors can easily learn about the fermentation process of enzymes through the lovely exhibition of the process. The factory has its own tree grape orchard, and visitors can make reservations for fruit picking activities and DIY activities to experience making healthy jams and tasting the deliciousness of natural tree grapes.