Hydra the Revenge
is a steel floorless roller coaster
at Dorney Park & Wildwater Kingdom
in South Whitehall Township
). It was built where the Wooden roller coaster
Hercules stood, which was closed for demolition at the end of the park's 2003
season. Its name is actually in honor of the coaster that stood in Hydra's spot: Hercules battled the Hydra in Greek Mythology
Hydra is the second roller coaster in the United States with an inversion before the lift hill, after Red Devil at Ghost Town in the Sky. This inversion is a barrel roll, and is popularly known as the "Jojo roll".
Hydra is also noted as being one of the first Bolliger & Mabillard coasters to not feature a pre-drop after the lift hill, a small drop before the main hill to help relieve tension on the chain in the lift hill. Rather, the train goes immediately into the main drop.
Hydra is also the first roller coaster to take an on-ride photo while its passengers are upside down. Riders are photographed while upside down in an inversion during the jojo roll.
The ride starts out by going through a "JoJo" roll providing a lot of hangtime. While in the "JoJo" roll, your picture is taken via the world's first and only on-ride photo placed to photograph riders while upside down. You make a right turn and then begin ascending the 95 foot lift hill. You then rapidly speed down the 105 foot drop and into the inclined dive loop. You then speed into the zero-g roll
providing a weightless feeling. After that is an oversized corkscrew leading to an oddly shaped cobra roll. Then there is an "S" shaped airtime hill followed by another airtime hill and into the final corkscrew. You then enter a helix then a turn into the brakes and coast back into the station.
- 95 ft. lift hill
- 105 ft. drop
- 62 ft. tall Inclined Dive Loop
- Zero-G Roll
- Cobra Roll
- Two onride photos