
A real-life action man from Killarney has just achieved an extraordinary feat by setting a new record for scaling all 275 of Ireland’s mountains over 600 meters, known as the Vandeleur-Lynams.
Seán Clifford completed this monumental challenge in just 21 days. more than halving the previous record of 47 days.
Covering 929 kilometers and ascending a total of 72,000 meters, his incredible achievement marks a new chapter in the history of mountain running.
It showcases not only his exceptional endurance and determination but also his deep passion for Ireland’s rugged landscapes.
“Ireland’s mountains are truly special and I wanted to visit all of them while at the same time, I wanted to push the boundaries of what’s possible for us runners,” Seán said.

“Completing this challenge in record time is a dream come true and a testament to the spirit of adventure. I couldn’t have done it without the support of the support crew,” he said.
Seán’s epic journey spanned the entire length and breadth of Ireland, navigating some of the country’s most challenging terrains.
From the majestic peaks of the MacGillycuddy’s Reeks in Kerry to the remote beauty of the Donegal mountains, he braved extreme weather conditions, steep technical ascents and the physical demands of continuous mountain running and climbing.
Seán’s record-breaking run was a source of inspiration not only to the trail running community but to all who appreciate the spirit of adventure and the beauty of Ireland’s natural landscapes.
Now based in the South of France, Seán is an experienced plant-based trail runner and organiser of trail running and hiking weekends for Irish adventure seekers. His experience in organising trail running holidays has clearly contributed to his successful execution of this ambitious endeavor.
Sean’s Stunning Stats
Peaks climbed: 275 (every Irish mountain over 600m)
Previous record: 50+ days
Sean’s record: 21 days, 2 hours and 47 minutes
Distance run/climbed/hiked: 929km
Elevation gain: 72,000m
First summit: Maumonght (Galway) August 7th
Last summit: Towmies (Kerry) August 28
Miles driven (between peaks): 3,000
Feat equivalent of summiting Everest from base camp 20 times or summiting Ireland’s highest mountain 100 times
KillarneyToday.com: Thousands of readers every day. To advertise call 064-6631281 or 087-2229761