A.D.
Nisha,
Galena is the way to go, it is a favorite destination for my extended family. if you haven't been there, it feels a bit like europe in IL!
my husband and i have a 13 month old little boy, so i know what you mean about not being able to do much that older toddlers would enjoy, but there are plenty of things to do in Galena. many good (casual) resturants, cute little shops (even some cute toy stores, baby clothes stores, etc) and a great resort - Eagle Ridge. we don't golf or care about spa stuff, but we love having all of the comforts of home, we usually rent a small house at Eagle Ridge. check out this website:
www.eagleridgeresortonline.com
good luck and congrats on 5 years!