© licensed to London News Pictures. Wallingford, UK.  03/09/11. A group of successful business women spend the day sky diving after raising a minimum of £20,000 each in order to participate in the sponsored jump. Breakthrough Breast Cancer launched the idea, called Breakthrough Bobby Birds,  in 2010. The skydive was chosen as it most closely emulates the feeling of 'free-fall' following a diagnosis of breast cancer. Mandatory Credit Stephen Simpson/LNP