The Six Flags Magic Mountain (SFMM) Discussion Thread in Theme Parks, Roller Coasters, & Donkeys! Posted October 23, 2010 So, I changed my plans and will be going on Sunday instead of Friday... (Posted it earlier. Not that I expect you to remember that!) How have the crowds been lately? Are Sundays bad? I've considered getting a Flash Pass. But I've heard that they need your passport or something similar until you return it. Is that... true? I know that Superman will be closed for sure, how about the other coasters? Sorry for bombarding you all with questions.