Andrew, Greg, and Dan from Viper Innovations will be attempting to complete the three peaks challenge - summiting the three tallest peaks in Wales, England, and Scotland in 24 hours - in support of South Bristol Youth charity: https://www.sby.org.uk/
Fundraising page23 hours and 20 minutes
The National Three Peaks Challenge takes in the highest mountains in Scotland, England and Wales, often in 24 hours.