Weekend for Fun, 5K and Family Day Kicks Off at Mesker Park Zoo News by: Staff Posted: Jul 21, 2015 / 04:57 PM CDT / Updated: Jul 21, 2015 / 05:16 PM CDT Lots of fun is in store for you this weekend at Mesker Park Zoo.Membership Specialist Abigail Adler joins us to talk upcoming Dash for Donna 5k and Family Day kicking off this weekend.