From the intersection of route 12 and 176 in Wauconda head west a few miles. Turn left on Darrel Rd. Continue until you cross the river and turn left on S Rawson Bridge Rd. Take a right at Crystal Lake Rd. The entrance will be on your right a mile down the road.
From the intersection of 31 and 176 in Crystal Lake head south. Turn left on East Crystal Lake Rd. The entrance will be on the left a few miles past Silver Lake Rd.