Hydra the Revenge

Hydra the Revenge is a steel Floorless Coaster at Dorney Park & Wildwater Kingdom in Allentown, Pennsylvania, United States. It is the only Floorless Coaster in Pennsylvania and was opened on May 7, 2005. Hydra was built on the site of the former wooden roller coaster Hercules, which was closed and demolished at the end of the park's 2003 season. Its name comes from the Greek Mythology story where Hercules battled the Hydra.

On September 3, 2003, Dorney Park announced that Hercules would not reopen for the 2004 season. The ride operated for the last time on Labor Day and site preparation began shortly afterwards. On September 14, 2004, the $13 million Hydra the Revenge was announced. Construction began in the spring of 2004 and continued through the winter. Hydra the Revenge was topped off on August 20, 2004 and the entire track layout was completed on December 4, 2004. The first cars for the coaster arrived at Dorney Park on December 10, 2004 and the first ride with people on a train took place on March 24, 2005. The roller coaster officially opened to the public on May 7, 2005.

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