Startling footage has emerged of a group of slack liners called the Western Riders traversing a line between cliffs in Portugal as huge waves cascade underneath them.
The tightrope walkers performed their daring crossing at the Cliff of Praia do Norte in Nazaré to the Guilhim Rock, a famous landmark known from viral photos of huge wave impacts and water explosions during the Portuguese Big Wave Season, Newsflare.com reported.
The Slack liner on this video was identified as Emerson Machado, 28, from Brazil.
