I'm actually in the Round Lake beach area myself.
The Cliff's is about 2 1/2 hrs south.
Here's the website to check out if you want: http://www.thecliffsinsaneterrain.com/
Not too scare anyone, but the Cliff's is definately a little tight in some areas and depending on the weather (if it has rained for 2 or more days) it can also be sloppy. Just want to let you know. The more the merrier.
If you haven't heard there is a group of people working on getting a club started out in McHenry area that is sponsered by the Extreme Jeep dealership. They have a club ride going on Sat. Oct 20th to the Badlands in Attica, IN with a variety of vehicles from stock to lifted.