This photo taken on July 8, 2021 from the official Instagram account of German tightrope walker Quirin Herterich shows him crossing on bare foot a 2.1 km-long valley in Swedish Lapland on a line suspended at a height of 600 meters.

STOCKHOLM - Four German tightrope walkers have set a new world highlining distance record by crossing a 2.1 km-long valley in Swedish Lapland on a line suspended at a height of 600 meters.

I just focused on being very slow, being extremely clean and just reaching the end.

Quirin Herterich, German tightrope walker

Reuters' video footage showed a barefoot man sway and teeter as he delicately tiptoed across the line between two mountain peaks in a snow-capped valley.

"I just focused on being very slow, being extremely clean and just reaching the end," said Quirin Herterich, who was first to cross the line before compatriots Lukas Irmler, Ruben Langer and Friedi Kuehne successfully followed.

ALSO READ: Italian tightrope walker inches his way over Tiber River

"This is hard because it's really exposed, it's 600 metres high, it's 2,150 metres and it's really windy here sometimes," said David Sjostrom, the project manager of the exploit.

This photo taken on July 8, 2021 from the official Instagram account of German tightrope walker Quirin Herterich shows the view of a line suspended at a height of 600 meters across a 2.1 km-long valley in Swedish Lapland.

It took the team two days to rig the line across the two Arctic Circle peaks which, at this time of year, bask in 24 hour sunlight.

READ MORE: 'The Mountain' deadlifts 501 kg to set world record

"This place, Lapporten, is for me an iconic place and a very beautiful landmark ... When I started looking at bigger projects I saw a picture of Lapporten ... and just when I saw it, I know it had to be rigged and crossed," Sjostrom added.