Hi Joshua!
Thank you for bringing your question to the Disney Parks Moms Panel. Congratulations on your upcoming nuptials! I can't think of a better place to celebrate such a magnificent time in your life than the Happiest Place on Earth!
You are correct that Disneyland Park does close Haunted Mansion for a couple weeks to transform the attraction into
Haunted Mansion Holiday. This is currently scheduled to open back up on September 15th, so unfortunately it will not be available for your trip.
I am glad to let you know that there will still be plenty to make your trip magical this September! I have to recommend that the newlyweds check out
Guardians of the Galaxy – Mission: BREAKOUT! This replaced the Twilight Zone Tower of Terror. Prior to my trip last month, I would have said Haunted Mansion Holiday was my favorite ride at Disneyland Resort, but after experiencing this new ride, I am seriously torn!
Don't forget to stop by
Guest Relations to receive your Celebration Button to commemorate your special trip. Please let us know if you have any other questions!
-Lindsey ºOº