Watch: Wakeskater jumps from world's highest rooftop pool to the beach in Dubai stunt

As if wakeskating across the world's highest outdoor pool was not daring enough — Brian Grubb decided to hit a ramp and jump off a 77-storey skyscraper in Dubai.

Waveskating is like waveboarding but one is not tied to the board. Also, imagine a skateboard without wheels and then riding it on a body of water while you're holding on to a rope. That's wakeskating.

Grubb, an American wakeskating pioneer and three-time world champion, took the extreme sport to the infinity pool perched atop the sky bridge of Dubai's Address Beach Resort — at 294m above sea level.

On November 29, he had himself towed by a drone as he wakeskated 94m across the rooftop pool. Then, he took his board to a skating ramp that launched him off the skyscraper.

In a world first, the wakeskating thrill turned into a 77-storey base jump that landed him on the beach below. It was a project Grubb aptly called 'Wakebase'.

"I wanted to be the first person to do a combination wakeskating switch into base jump and push myself to the highest level in my sports," he said. "I've had this idea for seven years, and not a day goes by when I'm not thinking about it."

Here's a video of the stunt:

Behind the action

For Grubb and his team, it's been a long time coming. Pulling off the "sickest thing" he had ever done on a wakeskate was no walk in the park.

A drone had to be built specifically for the stunt, and Grubb had to undergo extensive training.

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