You realize that his question, and this thread are six months old, right?
I was at Forest Park. It's on Forest Drive in between Locust and Oakwood Avenue. Take Eastwood Avenue from 176 to get there.
I didn't see any fish or catch anything, but I didn't stick around long at all. I didn't feel like taking a swim.
The ice depth was probably about the same here as it was out behind Hermann's Bar on Nielsen's Channels. I stopped there first as some guys were heading out behind the bar and drilling their first holes.