I'm guessing that's the size of the main lodge.
They have a big hill (the website says 15 acres) that is dedicated to snow play. They rent equipment.
The bigger kids take the tubes to the top and slide down. If I rememder right, they have a system to haul the tubes while the people walk up.
The 2 times we were there was on a weekend. The hill was big enough for everyone.
If you want to drive that direction, I don't think you'll be disappointed. They are nearby the Dodge Ridge Ski Resort.
Best of luck,
Roy