World's new longest waterslide: Escape park, Penang, Malaysia

It starts 70 metres in the air, measures over a kilometre long, and will take over four thrilling minutes to ride - welcome to the world's longest waterslide.

Construction is finishing up at the Escape park on the Malaysian island of Penang.

The 1140-metre waterslide will eclipse the current champion of 601m to claim the Guinness World Record for the world's longest when it opens sometime in August.

Accessed by a cable car chairlift, the ride crisscrosses through natural forest and the tree canopy before ending in the Escape Waterplay pool.

It is being constructed using fibre-reinforced polymer and has been built around the forest without the need for heavy machinery.

Built by the Sim Leisure Group, CEO Sim Choo Khengwho said breaking of the world record wasn't the initial intention.

"I'm always baffled by how rides are made so short and quick. I wanted to build rides that last a good few minutes, with non-stop smiles and giggles as visitors fly through the rainforest – something never done before," he said.

"We then realised the 70-metre elevation at the hilltop would mean that the water slide would become a record-breaking feat. We thought, what the heck, if we can put the extra smiles on our customers' faces, it would all be worthwhile."

The current holder of the Guinness World Records longest waterslide is in Action Park, a US theme park in New Jersey, at 601 meters in length.