Daniel and Moises, brothers from San Francisco, crossed a 2,800-foot-long highline some 1,600 foot above Yosemite Valley, from granite boulders at Taft Point west across a series of gullies to an old, thick tree trunk on the other end of the line.
Highlining is high-altitude slacklining, in which a narrow strip of strong, nylon webbing — usually an inch wide and a few millimeters thick — is strung between two anchor points and serves as a kind of balance beam.
Completing a line means carefully heel-toeing from one end to the other while wearing a waist-harness that links to a 3-inch steel ring around the webbing. In a fall, walkers remain attached, but they have to haul themselves back up to balance or shimmy back to an anchor point while dangling upside down.
Griggs, who documented the brothers’ crossing and was himself on the line at times, said he is “terrified of heights.”
Daniel Monterrubio noted that highlining “looks pretty crazy” but is a “really safe sport.” They hope to bring it to more people, including in urban settings.
This segment aired on the KTLA 5 News at 1 on June 23, 2021.
The Associated Press contributed to this post.