Hydra was built on the site of the former wooden coaster Hercules, which was closed and demolished at the end of the park's 2003 season.

[5] The first cars for the coaster arrived at Dorney Park on December 10, 2004, and the first ride with guests on a train took place on March 24, 2005.

According to the story, Hercules defeated the Hydra, a nine-headed creature with eight serpentine heads that would regrow each time they were cut off, including one that was immortal.

He instead buried it deep underground beneath a giant stone, with the intention of sealing it for the rest of time.

Upon exiting the roll, the train makes a 180 degree right turn and begins to climb the 95-foot (29 m) lift hill.

Jeremy Thompson from Roller Coaster Philosophy said that "the ride itself is okay, but I’m not sure if I really loved the whole experience...still, it’s got a more interesting layout.

"[10] A group of roller coaster enthusiasts also came to the conclusion that "...it's a good, but not quite great, ride that's perfect for family-oriented Dorney.