Not for the feint hearted or the intelligent so if you are either just turn up to watch the daredevils descend from Tryfan’s summit to the A.5, the record is an amazing 8 minutes.

Register in the car park at the race finish from 12:00 pm, entry £1 on the day with all monies going a little bit worryingly to Ogwen Valley Mountain Rescue, you do not need much up top to understand why!