San Diego EarthFest is a FREE Earth Day celebration presented by Vegan Food Popup. Featuring over 100 eco-friendly food, product, and service vendors as well as environmental, conservation, and animal rescue groups. Enjoy a full day of entertainment with speakers, music, and activities for kids. Balboa Park is the previous site of EarthFair, the world’s largest Earth Day festival. We are excited to continue the tradition of celebrating Earth Day at Balboa Park. This event is held on the expansive lawn located at Park Boulevard and Presidents Way.