The National Three Peaks Challenge is an event in which participants attempt to climb the highest mountains of England, Scotland and Wales within 24 hours, although less extreme challengers are content to cover the three peaks within a long weekend. It is frequently used to raise money for charitable organisations. Walkers climb each peak in turn, and are driven from the foot of one mountain to the next. The three peaks are:
- Ben Nevis / Beinn Nibheis (1,345 m or 4,413 ft), the highest mountain in Scotland
- Scafell Pike (978 m or 3,209 ft), the highest mountain in England
- Snowdon / Yr Wyddfa (1,085 m or 3,560 ft), the highest mountain in Wales
The total distance walked is estimated at 42 kilometres (26 mi) or 44 km (27 mi), with a total ascent of 9,800 feet (3,000 m).