Here are some directions I found. Don’t know the name of the place but good luck. My kid is now sick so hopefully I can get out on Sat from the wall for a while.
Good luck.
Derek
If coming from Milwaukee take 94 south towards Chicago and exit on National Avenue. Take National (east) until it ends. When it ends take a left (north) and you cant miss the launch. There is a big brown sign calling out the launch. Do same thing if you are coming from the south towards Milwaukee.