Thunder Dolphin

Coordinates: 35°42′23″N 139°45′12″E / 35.706336°N 139.753277°E / 35.706336; 139.753277
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Thunder Dolphin
Thunder Dolphin's Lift Hill
Tokyo Dome City Attractions
LocationTokyo Dome City Attractions
Park sectionLaQua
Coordinates35°42′23″N 139°45′12″E / 35.706336°N 139.753277°E / 35.706336; 139.753277
Opening dateMay 1, 2003
General statistics
DesignerWerner Stengel
ModelMega Coaster
Lift/launch systemCable lift hill
Height80 m (260 ft)
Drop66 m (217 ft)
Length1,066 m (3,497 ft)
Speed130 km/h (81 mph)
Max vertical angle80°
Capacity1,660 riders per hour
Height restriction130 cm (4 ft 3 in)
Thunder Dolphin at RCDB

Thunder Dolphin (サンダードルフィン) is a steel roller coaster at the Tokyo Dome City Attractions amusement park, which is part of Tokyo Dome City in Tokyo, Japan. The ride was designed and constructed by Intamin. At 80 metres (262.5 ft) tall, Thunder Dolphin is one of the tallest continuous circuit roller coasters in the world, currently ranked number 10. Following an incident in which a 25 centimetres (9.8 in) long bolt fell from the ride while in motion on 5 December 2010, injuring a 9-year-old visitor,[1][2] operation of the ride was suspended until 1 August 2013, when the ride reopened.[3][4][5]

Thunder Dolphin's 1,066.8 metres (3,500 ft) long course passes through both a hole in the LaQua building, and through the Big-O, the world's first centerless Ferris wheel. Thunder Dolphin has a maximum speed of 130 kilometres per hour (81 mph).

An ascending train at Thunder Dolphin


  1. ^ 遊園地でボルト落下、小学生軽傷 東京ドーム [Elementary school child injured by falling bolt at Tokyo Dome amusement park]. 47 News (in Japanese). Japan: Press Net Japan Co., Ltd. 5 December 2010. Retrieved 24 December 2012.
  2. ^ コースター部品、落下は設計ミス 東京ドームで女児軽傷 [Tokyo Dome rollercoaster accident due to design error]. Nikkei Shimbun (in Japanese). Japan: Nikkei Inc. 3 September 2012. Retrieved 24 December 2012.
  3. ^ サンダードルフィン [Thunder Dolphin]. Tokyo Dome City Attractions official website (in Japanese). Japan: Tokyo Dome. Retrieved 24 December 2012.
  4. ^ "Thunder Dolphin at LaQua reopens after 2 and a half years!". 12 August 2013. Retrieved 16 August 2013.
  5. ^ "Thunder Dolphin". Retrieved 16 August 2013.

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