On travel looking for Places to swim in Naperville Illinois

Hi everyone, I am a 45 years old french master swimmer on business travel in West Chicago for 10 days in mid september looking for a place where i could go on my all year long swimming training ... Can anyone help please ? Can't find locations on google ?? Probably i am using bad searching words ... Olympic pool would be great, that's what we got here in Caen, Normandy, and it's so pleasant ! but a 25m pool with lines dedicated to "fast" swimmer woud be fine too To introduce myself as a swimmer, i swim 3 to 4 times a week (3000 m each session), i take part in swimming meetings (races) around 10 times per year (including French Master Championships), and my best times this year was a 29'45 (50 meters freestyle) / 33'61 (50 m buterfly) / 37'11 (50 m backstroke) what was great for me, because it was a 3 secondes better in every stroke that my bests times in 2013 ... In pleasure to hear from a US master swimming in the area, Pascal