If I float, I'll swim a lap of the Serpentine in Hyde Park this Saturday to help raise money for Cecily's fund. 

Cecily's Fund supports orphans and vulnerable children affected by HIV/AIDS in Zambia. It was founded in 1998 in memory of Cecily Eastwood, my colleague's sister, who was killed in a road accident in Zambia. She had been working with a local organisation supporting young orphans. Since its formation, Cecily's Fund has helped thousands of vulnerable Zambian children gain an education and improve their lives. You can find out more about their amazing work at http://www.cecilysfund.org/