We stayed an evening here for a last day of school celebration. Bathrooms were clean (and prepared to follow social distancing guideline). The park provides cut firewood for campers. The yellow scout trail which connects with the NCT is off the meadow with the group sites, or you can ride your bikes down the paved road to mallard lake where most of the parks trailheads and multi use trail access lies. Oak openings has everything from pine tree forests to sand dunes. The sites were nice for primitive camping. As a lifetime local I must applaud our metroparks for creating some beautiful primitive campsites. Prior to this initiative the only local campsites were loud party campgrounds filled with RVs.