GreenDay is a plastic-free picnic concert that invites general public to experience a sustainable lifestyle. The stage and movie screening are powered by 100% renewable energy. The event includes an exhibition and a VR area that shows the threats of plastic pollution to marine life, and Make Something workshops of beeswax food wrap and lemon shampoo. Led by a group of Greenpeace volunteers, the events in two cities, Taipei and Taichung, attracts a turnout of 2,150 people.