We were hiking with my son's cub scouts troop. It's not too far from Lisle. There's a beautiful nature center building with kids activities inside and beautiful views.
The trail has great views as well. Views of water, a tiny but wide waterfall, and a big, water mill (at the time the mill was out of commission).
The trail had an easy path, no long grasses or anything like that.
I'd go again.
After coming back from the Pacific Northwest, I've been looking for a decent trail near lisle. This one fits the bill. Easy to get to, different path options. Is dog friendly (on leash only). There are a lot of bikers on the main track but smaller grass and soil paths throughout which make you feel far from the city. Don't go after a rain on those though, can be a bit muddy.
This trail system is a gem. There are paved, dirt single track, and grass & gravel double track. Not much in terms of elevation, but loads of fun. The single track is flowing and fast. The single track can stay muddy, so, on those days, its great to have the grass trails and double track. Lots of deer and hikers!