Honestly. I'm not sure. When i worked there, it was during the Open 365 Day operations.
I understand the apocalypse made them revert back to their old ways of "weekends only" operations, but it still surprises me. Knotts is D.E.A.D. monday-friday, but they're still open everyday. I know Magic Mountain isn't exactly "nearby", but still.
If i had known it was open today, I would've dragged my butt up there. Now I gotta wait until I have a Monday off