The 3 Peaks Challenge involves climbing Mount Snowdon, Ben Nevis and Scafell Pike.

To complete the 24 hour challenge groups must start at the foot of Ben Nevis and finish at the foot of Snowdon having reached all three summits in under 24 hours.

There is nearly half a century of tradition involved with the 3 peaks challenge with lots of variations in style. The typical challenge though involves climbing Snowdon, the biggest mountain in Wales at 1085 meters.