Special Events

Cosley Zoo hosts a variety of events every year, including the popular Run for the Animals in June and The Festival of Lights & Christmas Tree Sales in December.

Important: Unless otherwise noted, please register for events by calling Cosley Zoo at 630.665.5534.



Festival of Lights and Tree Sales

November 28-December 30
A winter time visit to Cosley Zoo has become a family tradition for many.  Make sure it is one of yours!  Cosley Zoo is transformed into a winter wonderland with 20,000 twinkling lights creating spectacular displays, an amazing selection of Christmas trees for you to purchase, hot chocolate, and holiday gifts.  The Festival of Lights and Tree Sales begin the day after Thanksgiving (11/28/14) and continue through December 30. The zoo is open 9A-9P daily; lights come on at 3P.  All proceeds support the zoo, its animals, programs and development. 


For more information about this event, please call 630.665.5534.


Thank you to Cosley Zoo’s 2015 Festival of Lights Sponsors:


Christmas Tree Lane Sponsor



Animal Light Display Sponsors




Christmas Tree Lane--FULL

Tree decorating to take place November 30-December 6, 2014
Gather together your scout group, friends, coworkers or family members to help decorate Cosley Zoo for the holidays!  We provide a lit five foot tree and you provide wildlife-friendly ornaments and imagination.  Trees are displayed through December.  Payment is due upon reservation; trees are limited so call today!

For more information about this event, please call 630.665.5534.










Santa’s Craft Corner

Saturday, Nov. 29, Dec. 6 & 13, 10A-2P
Can’t make it to the North Pole?  Do the next best thing and come to Cosley Zoo where you can see Santa AND the animals!  While visiting Santa, make a craft or two and enjoy refreshments. 

For more information about this event, please call 630.665.5534.






Interested in sponsoring an event?

Please contact Sarah O’Donnell, Development Director, at 630-510-4986 or sodonnell@wheatonparks.org

Benefiting Cosley Zoo

Proceeds from all events support Cosley Zoo and its activities, including educational programs and wildlife conservation. 

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Festival of Lights and Tree Sales

Christmas Tree Lane

Santa's Craft Corner

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