KATHMANDU, April 14: Australian climber Allie Pepper successfully reached the summit of Mt Annapurna, the world's 10th highest peak, without using supplemental oxygen, according to expedition organizers.

Pepper, 48, from the Blue Mountains in Sydney, is on a mission to scale all 14 of the world's peaks over 8,000 meters without supplemental oxygen within three years. Joined by her climbing partners, Mingtemba (Mikel) Sherpa and Ngima Wanadak Sherpa, Pepper achieved this feat at approximately 12:05 PM Sunday, reported Thaneswar Guragai, General Manager at Seven Summit Treks.

This ascent of Mt Annapurna marks the third peak Pepper has conquered since starting her project in July 2023, with previous climbs including Broad Peak in Pakistan and Mt Manaslu. She aims to complete the remaining 11 peaks by July 2025.

Following her return from Mt Annapurna, Pepper plans to tackle Mt Makalu next. Currently, only two men have completed all 14 of the world's 8000-meter peaks without oxygen, a task that took them 16 years. Pepper's project is named "The Respect Above the Clouds 14 Peaks No O2.”