The biggest names on the jet-set superstar DJ circuit play at this massive open-air party (last year including Paul Van Dyk, Sasha, Roger Sanchez, Pete Tong, Timo Maas, Eddie Halliwell, Taul Paul, LTJ Bukem and Goldie). Complaints from residents do mean it's not quite as loud as you might want it to be, but the hands-in-the-air outdoor raving experience more than makes up for that - and the bank holiday on Monday gives you a couple of days to recover. If you can't be bothered with afternoon raving, it's well worth checking out the many official and unofficial afterparties going off in Clapham and Brixton later in the evening.