Earth Day Festival 18 Apr 2026 Celebrate Earth Day with the City of Glendora at the Annual Earth Day Festival! This year’s theme, "Our Power, Our Planet", which is championing solar, wind, hydroelectric, power, and more! Join us for a day of family-friendly activities at Finkbiner Park, along with a various collections at the City Hall parking lot. Don’t miss out on this exciting opportunity to make a positive impact! Multiple locations Tagged as: , Exhibitions & festivals, Kids & family, Major events, Markets & popup shops, Music & arts, Youth events, Holiday