This review is for McKee Marsh on the north side of the preserve. This is a prime location for birding in DuPage County, especially in the spring and fall when birds are migrating. Bring binoculars and a camera with telephoto lens, if you have them. Don't forget bug spray in the summer!
If you are an avid hiker and live in DuPage county, Blackwell has the most to offer. I use Mount Hoy to train for my annual hikes in the mountains. There are trails on the backside of the hill that are much steeper than the sledding hill There are several flat crushed limestone trails that meander around the perimeter of the park. I found a few unmarked foot paths that wind through the woods around silver lake. Some the of descents down to the lake are very challenging. Blackwell much more to offer such as boat rentals, camping, fishing, picnicing.
Very easy crushed gravel and turf trail, but this trail had a little bit of everything. The McKee Marsh was the first wetlands rehab project in DuPage county, and it is outstanding: so much plant variety and amazing birds. The more forested parts of the oak savannah are also shady and lovely. Highly recommend this easy trail with so much to see!