If you grew up in the Northeast (or are a fan of rickety regional theme park history), then you are probably aware of Action Park the bone-breaking-est amusement park on the east coast, which welcomed unlucky guests from 1978 to 1996. Action Park, formerly located in Vernon, New Jersey, has inspired countless YouTube videos, the Johnny Knoxville-starring feature Action Point, a recently released nonfiction book, a killer Sports Illustrated feature, and now, a new HBO Max documentary called Class Action Park. And the best part is, you won’t incur any serious head or neck injuries while …