Post in stuck at ohare? need a place to stay on a long layover?

Aloha everyone, I have a long layover at Ohare on June 17th from 10:30am-4pm and would love to get out of the aiport and have some fun! I figure I could have about 5-6 hours to do something and would love to meet some new friends. I am an ethnobotanist, herbalist, fire dancer, and university teacher at the university in Hawaii where I live, will be on my way to Spain for 1 month, then will have another layover July 16th on my way back (over night). Would be cool to see the city, see some nature, do something active, or whatever... Thanks! Laura