Rocky Springs was an amusement park in Lancaster, Pennsylvania that was in operation from 1890 to 1966. The park featured four roller coasters, three made of wood and one of steel.
Their first coaster was a Figure 8, which allowed for more turns and offered riders an alternative experience. It began its run by heading through a wooden tunnel, just high enough to accommodate the passengers. There were newspaper reports of accidents from people standing and hitting their heads, but most considered that part of the fun.
Today there is a Rocky Springs Entertainment Center (bowling alley) and a Rocky Springs Bed and Breakfast. On the 17 acre B&B property, remnants include the carousel building, a snack stand, and this set of cars from the Rocky Springs 1928 Wildcat roller coaster.
Five miles away is a modern amusement park called Dutch Wonderland, with 44 acres of roller coasters, water slides, kid’s shows and campgrounds. Popular with tourists and summer locals, Dutch Wonderland is probably much safer then the old Rocky Springs Park, but I doubt it’s the same alternative experience.