Swanhills is an 18-hole public golf course in Belvidere, Illinois, built in 1995 and designed by Midwest Irrigation. It sits in the $ (budget) price range for golf in Illinois. The season runs Apr 1 to Nov 15. Tee times can be booked 7 days in advance. Guests are welcome.
Details like fees and seasons change, so call the course before you head out.