20130111 Copyright onEdition 2013© Free for editorial use image, please credit: onEdition Sir Robin Knox-Johnston onboard one of the new Clipper 70 fleet of yachts in St Katherine's Dock London If you require a higher resolution image or you have any other onEdition photographic enquiries, please contact onEdition on 0845 900 2 900 or email info@onEdition.com This image is copyright the onEdition 2013©. This image has been supplied by onEdition and must be credited onEdition. The author is as