The hidden forest trails here are actually two nature preserves gifted to the county, the northern Loretta Naurene Forest Preserve in 1992 and the southern Groth Nature Preserve in 1997. Approximately 1.25 miles of trails connect the two tracts, with a 0.5 mile forested loop in the northern half linked with a slightly longer loop in the southern half.
The trails are wide and well-maintained, but expect to find muddy conditions no matter the time of year. It is a mostly flat hike, with a gentle 10' incline on the northern half. There are a couple different access points, but the best is through the Lucky Memorial off-leash dog park, because of the parking lot.