What is this BLAC all about?

For any cyclist, a day out including climbing 1000 meters is a big day out. Climbing 2000 in a day is a huge day and is usually followed by some serious bragging and walking backwards down stairs!
So to attempt to climb the height of Mt Blanc in a day is no mean feat - Mt Blanc is 4809 meters, let's call that 4810 between friends!
That is exactly what Mrs Moores is going to attempt - going up and down the daunting Jura climb of the Barillette from Cheserex 5 times in one day.