Action Park & New Jersey's Backyard

 is an amusement and water park located in Vernon, New Jersey, United States, on the grounds of the ski resort. It originally opened in 1978 and then rebranded as Mountain Creek Waterpark in 1998. It rebranded back to Action Park for 2014 and was bought by Carwardine Parks in 2016, who added the New Jersey's Backyard theme park to the property.

Water rides

 * F1 (ProSlide Twister)
 * F2 (ProSlide Twister)
 * F3 (Dive-In Slide)
 * F4 (ProSlide FreeFall)
 * Kiddie Korner (Kids play area, combines 3 older attractions)
 * Level 1 (ProSlide Pipeline)
 * Level 2 (ProSlide Dark Pipeline with Theme Choice)
 * Level 3 (ProSlide TurboPipeline)
 * Level 4 (ProSlide TurboPipeline)
 * Level 5 (Tube Slide)
 * Level 6 (Tube Slide, considered one of the first bowl slides ever made)
 * Lost Island River (Lazy River)
 * Mammoth (Rafting Slide)
 * Mini-Tarzan Jump
 * Racer (Mat Racing Slide)
 * Tarzan Jump
 * Tarzan Pool
 * Tornado (A ProSlide Tornado, formerly High Anxiety)
 * Wave Pool

Areas

 * New Jersey Alpines
 * Carwardine Thrills
 * Kids Kountry

Roller coasters

 * Alpine Coaster (2014; A Wiegand Alpine Coaster, Originally Part of Action Park 2.0) [New Jersey Alpines]
 * Daring Drop (2017; A B&M Dive Coaster) [Carwardine Thrills]
 * Maggie Simpson's Adventure (2022; Zierer Force Zero) [Kids Kountry]
 * Mine Ride (2021; An SBF Mine Train, relocated from Wonderland Eurasia) [Kids Kountry]
 * Redwall: The Ride (2017; A Zamperla Volare roller coaster, relocated from Opryland) [Carwardine Thrills]
 * Sagwa's Rickshaw Run (2017; a Vekoma Suspended Family Coaster with two inversions, much of the layout barring the lift hill and the fact it's inverted is in the style of it's Schwarzkopf "cousins" at Omaha Luna Park and Alabama's Backyard) [Kids Kountry]

Flat rides

 * Big Wheeler (2017; A Huss-TechEruo Panorama ride) [Carwardine Thrills]
 * Blaster (2017; An S&S Space Shot ride) [Carwardine Thrills]
 * Caterpillar (2017; a Huss-TechEruo Caterpillar ride) [Carwardine Thrills]
 * Grave Waves (2023; a Zamperla BigWavez ride, first of it's kind) [Carwardine Thrills]
 * Mighty Morphin Power Rangers 4D: The Greatest Fights (2017; A Sally dark ride with 4D technology) [Carwardine Thrills]
 * Screamin' Swing (2017; An S&S Screamin' Swing ride) [Carwardine Thrills]

Kiddie Rides
All kiddie rides are located in Kids Kountry.
 * Care Bears Cloud Cars (2017; A Zamperla Convoy ride)
 * Grand Prix (2017; A Zamperla Speedway ride)
 * Roto-Round (2017; A Huss-TechEruo Junior Roto-Round ride)
 * Up Up and Ahoy! (2017; A Zamperla Crazy Bus ride themed to a pirate ship)

Restaurants and food stands

 * Alpine Fries
 * Aqua Skoot Drinks by Pepsi
 * Cannonball Loop Donuts
 * Carvel Ice Cream at Action Park
 * Class Action BBQ
 * Dippin’ Dots
 * Grave Pool Snacks
 * ICEE Mix It Up
 * McDonald's at Action Park
 * Space Shot Shakes
 * Subway at Action Park
 * Surf Hill Burgers

Trivia

 * This park heavily advertises itself as "The World's Most Infamous Park", and anyone who produces an Action Park documentary on YouTube with at least 10,000 views automatically gets listed on the website.