The Festival of the Calla-Lily is held in March and April in Zhuzihu at Yangmingshan National Park. The local flower farms turn into a sea of white calla lily blooms at this time. Visitors can pick their own flowers or purchase pre-cut blooms from the shops.

Visitors can also join free guided eco-tours of the Zhuzihu area on weekends between 10:30 a.m. and 2:00 p.m. Professional guides lead walking tours along river trails and introduce points of cultural, ecological and scenic interest along the way. The Zhuzihu Calla-Lily Concert also adds a musical note to this floral event.