Surfrider, Steel roller coaster in Warner Bros. Movie World, Gold Coast, Australia

The Flash: Speed Force is a steel shuttle roller coaster at Warner Bros. Movie World on the Gold Coast, Queensland. Its teal-and-white track forms an upright U: a steep tower on one side and a large looping arc on the other, held up by white cylindrical columns and an angled brace. Riders board at the bottom of the U in two free-spinning circular cars shaped like a giant surfboard, six per car.

The roller coaster was originally installed at Wet'n'Wild Gold Coast in 2007 and operated there until 2020. The ride was then relocated to Warner Bros Movie World in 2024.

The ride is themed to the DC Comics superhero the Flash, and its two six-seat cars are shaped like giant surfboards, a nod to its former life as Surfrider. Each car spins freely as the train is launched up both sides of the upright U. Water features meant to mimic a wave were installed but never used.

Riders board at the bottom of the upright U-shaped track, in one of two free-spinning circular cars that each seat six people. A ride lasts about one minute, with linear synchronous motors accelerating the train up both sides. The coaster was built within the footprint of the existing Superman Escape ride.

The ride opened in 2007 as Surfrider at Wet'n'Wild Gold Coast, where water features were built to mimic riding a wave but were later abandoned. It stood unused from 2020 until its removal in April 2023, then reopened at Warner Bros. Movie World on 13 May 2024 as The Flash: Speed Force, built inside the footprint of the Superman Escape coaster.