LIE traffic isn’t the scariest thing on Long Island.

There are a good 70 spooky properties, grounds, and trails that the Long Island Paranormal Investigators frequent in Nassau and Suffolk County, but one spot on the North Shore takes Casper’s cake — Mount Misery in Melville.

“If you get a full moon on the fall equinox, it’s like the gates of hell open up here. You’re guaranteed to get something,” Mike Cardinuto, founder of the LIPI, told The Post.

Haunted houses, trails, and spaces with tell-tale signs of paranormal activity are hiding in plain sight throughout Nassau and Suffolk Counties — and it’s the Long Island Paranormal Investigators’ goal to search them all. Heather Khalifa and Alex Mitchell for New York Post

“This is probably one of the most haunted places here on Long Isla

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