The 2013 event starts 1000 hours Saturday March 9 at Ryka's and finishes atop Box Hill whenever you get there. And still only £3 (or £2 for those who register in advance at www.cyclingswlondon.org.uk).
Short but warmingly hilly (3000 ft) event. Not a Sportive, not an Audax. (but so similar in terms of a good morning out as makes no difference). Expect to see some of the regions top racing people alongside others with wicker baskets and everything between.
Recommended ride for anyone thinking of riding one of these; http://redhillcc.co.uk/events/2013/04/redhill-cc-audax-60-120km-box-hill