UK 3 Peaks challenge for charity

Hi, my name is Joe during the month of June I and 6 others will be attempting the UK 3 peaks challenge, and I thought why not raise some money for a charity while I'm at it. The charity I'll be donating to is prostate cancer uk as my grandfather had and over came it a few years back which means me my brother and my dad are all high risk for it so I was told. My promise for this challenge is if we finish under 24 hours I will donate £50 along with what I raise here but if we finish over 24 hours I will donate £100 gives me incentive to complete this challenge for all that donate.