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VISITORS: Please note that the Zoo will close early to pedestrians and vehicular traffic on Oct. 20, 21 and 22 in preparation for Boo at the Zoo. Please visit the hours page for full details.

Earth Optimism Day

Saturday, April 22, 2017
10:00 am to 2:00 pm
  • boy reaching to put his fingers in a cup of dirt
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Earth Optimism Day

On Saturday, April 22 from 10 a.m. to 2 p.m., spend Earth Day celebrating conservation success stories at the Smithsonian's National Zoo. This family-friendly event features fun activities and interactive demonstrations, including a conservation scavenger hunt!