Celebrate Earth Day at Aquarium of the Bay’s EarthFest. EarthFest is an outdoor festival featuring organizations dedicated to the conservation and protection of our environment, along with live children’s music by Sandi & Stevie, free giveaways, a family scavenger hunt, and lots of opportunities to earn 50% off* admission to Aquarium of the Bay. Each organization will be highlighting easy “green” or earth-friendly actions that you and your family can do at home. EarthFest is a fun, free way to enjoy the beautiful San Francisco waterfront and learn more about how you can help better care for the Bay area and save our planet!