The Metra is a great way to get into the city without having to drive/pay for parking. This will take you to Chicago's Union Station, which is in downtown Chicago. Stops along the Milwaukee District West (MD-W) line are close to the venue - specifically the Big Timber and Elgin stops.
Puttshack is a fun mini-golf course and bar. We recommend you call ahead of time and make a reservation - it can get busy!