The Six Flags 30-Hour Coffin Challenge is back this year, and we now have bone-chilling details about what horrors await participants.

Jackson thrill park Six Flags Great Adventure hosts the returning event Sunday, Oct. 13, through Monday, Oct. 14, in the midst of its annual Fright Fest celebration.

Six contestants will be placed inside a coffin with a fully-covered lid, save for a small mesh hole. While inside challengers will participate in games with, according to a park statement, "live bugs, pungent food items and trivia" in an effort to earn points, penalties and a "Get Out of the Coffin Card," hosted by guest emcee Butch Patrick of "The Munsters" fame.

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Participants will eat their meals inside their coffin and have unexpected visits from Fright Fest performers as well as snakes, spiders, skunks and other members of the animal kingdom.

They can leave the coffin once every 13 minutes every three hours to use the restroom or their phones, and in the interests of sleep deprivation they will endure musical selections such as "Baby Shark" and yacht rock classics played on repeat overnight.

Those brave enough to participate have until Sunday, Sept. 22, to apply via www.sixflags.com/greatadventure/coffin-challenge, with applications accepted from both individuals and pairs who wish to endure the challenge together. Finalists will be chosen the week of Sept. 23, with the event running from 1 p.m. Oct. 13 through 7 p.m. Monday, Oct 14.

Oh, and what grand prize awaits the survivor? Two Six Flags Gold Passes, two Fright Fest haunted maze passes and $600. Runners up earn rewards including Fright Fest day passes or Six Flags Great Adventure season passes.

More than 4,000 applicants vied for the chance to compete last year, with all six participants making it to the 30-hour mark, which resulted in this year's new rules, challenges and a point system.

Fright Fest launches, appropriately enough, on Friday, Sept. 13, running weekends and select weekdays through Nov. 3. For more information, visit www.sixflags.com/greatadventure.