On July 20, professional rock climber Sasha DiGiulian [1] became the first woman to free-climb Madagascar's Mora Mora — an intimidating 2,300-foot wall that's known to be one of the most difficult free climbs in the world. Alongside Edu Marin from Spain, the 24-year-old successfully scaled the wall in three days.

In an interview with Red Bull, Sasha said it was an especially difficult ascent [2] due to the lack of handholds. The rock indentations she would grab on to were so small, in fact, she compared them to "shelled peanuts."

Despite that tiny little obstacle — pun intended — Sasha followed her intuition and skill. "It's like a dance," she said. "Every foot placement needs to be laser-precise. Light breaths and slow movements, body positioning, and trusting negligible little crystals."

Sasha later took to Instagram [3] to celebrate her incredible accomplishment. She wrote, "It had been a goal of mine for a few years and I am excited to have arrived at a point in my fitness that I could send my hardest big wall climb yet!" Watch the spine-chilling video of her history-making ascent, above.