Massive Play-land in Milwaukee area

So I have these memories of a place where there was just tubes where kids could crawl through, like a Mc'Donalds playplace but on a massive scale. I don't know if I dreamed about this or if it was an actual place, but it would have been active in or around the Milwaukee area in the 1990s. It was quite literally the coolest place ever and I can't for the life of me remember where it was or what it was called. Please give me a hand here if you remember something like this.