Rattlesnake is a steel wild mouse style roller coaster ride which opened in 1998 at Chessington World of Adventures Resort as the theme park's third coaster. It was designed by Ing.-Büro Stengel GmbH, and manufactured by Maurer Söhne / Wilde Maus Classic. it is over 1000 feet long. Rattlesnake was refurbished over the 2013 season, all the queue line animatronics were replaces, the station was repainted and the surrounding theming was replaced.
Due to local planning restrictions (a result of the park being on green belt land) the land designated for the ride area was excavated, resulting in the ride being partially submerged below ground level. The layout consists of a steep lift hill, sharp turns and small airtime hills.
The Rattlesnake is themed around a Mexican mine of the Wild West era, with the cars resembling mine carts and a number of wooden structures and animated figures. The installation of the ride prompted the renaming of the park's 'Calamity Canyon' area to 'Mexicana', which it remains today.
Rattlesnake shares the tallest height restriction with Rameses Revenge at the park: minimum 1.4 metres, maximum 1.96 metres. There are also chest restrictions for waist measurements 51 inches or above. However, if the lap-bar cannot fit over one's legs, then one cannot ride as they cannot be kept restrained!