l Opened l 2005 l- l Manufacturer l Bolliger & Mabillard l- l Capacity l 1,245 Riders per hour l- l Height l 95 feet l- l Top speed l 53 mph l- l Length l 3,198 feet l- l Inversions l 6 l- l Steepest Drop l 68° l-
Hydra The Revenge


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Hydra The Revenge (Dorney Park) - OnRide - (720p)

Hydra The Revenge (Dorney Park) - OnRide - (720p)



Dorney Park

Hydra logo

Hydra The Revenge is a Bolliger & Mabillard floorless roller coaster located at Dorney Park in Allentown, Pennsylvania. The ride features a Barrel Roll (Or, "Jo-Jo Roll") right out of the station and unlike most other roller coasters built by Bolliger & Mabillard, it has no predrop after the lift.


Heartline Roll
Dive Loop
Zero G Roll
Cobra Roll


The coaster is named in honor of the wooden coaster it replaced, Hercules. It is interesting that Hydra replaced Hercules while in Greek mythology, Hercules conquered the Hydra.


  • Many coaster enthusiasts debate whether Hydra has 6 or 7 inversions, as some say the dive loop does not completely invert riders
  • Hydra features the world's first and only on-ride camera that photographs riders while upside-down. The camera is located in the Heartline roll.
Dorney Park Roller Coasters
Operating Hydra The RevengePossessedSteel ForceStingerTalonThunderhawkWild MouseWoodstock Express
Former Dragon CoasterFlying DutchmanHerculesLaserScenic RailwaySteel FirstWild Mouseunknown
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