Candlelighters is a charity that supports children with cancer and their families. This could be investing in vital research, funding support roles on the ward and providing play leaders crucial to making the ward and treatment more 'child friendly'. They were a massive support when my little boy was undergoing treatment for leukaemia and I couldn't imagine the ward without them.
Charity website
The Yorkshire Peaks Challenge involves climbing Pen-y-ghent, Ingleborough and Whernside, often within 12 hours.