Thrill-seekers look east - the Orbit tower in the Olympic Park is set to become the “world’s longest and tallest" helter-skelter.

Built around the ArcelorMittal Orbit, Britain’s tallest sculpture, the tunnel slide will measure around 178m and be 76m high.

Due to open in spring next year, the descent will take about 40 seconds and have an average speed of 15mph.

There will be transparent sections on the slide so users will be able to marvel at views of east London, albeit very fleetingly as they zoom down the structure in Stratford.

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The enclosed steel tube will wind in and out of the lattice work of the Orbit, providing an exciting alternative to the staircase that is the usual way of descending from the viewing platforms.

Having a go on the giant slide will cost around £5, in addition to the Orbit’s entrance fee (£12 for an adult, £32 for a family).

Peter Tudor, director of visitor services at Queen Elizabeth Olympic Park, said: “We are committed to ensuring our visitors have the best possible day out every time they visit, and as with all our venues, we are constantly exploring ways to ensure we lead the way with the latest visitor experience.

“This slide really will give a different perspective of Britain’s tallest sculpture.”