 The Campaign also organises the annual Great British Beer Festival in August.It is now held in the Great, National & West Halls at the Olympia Exhibition Centre, in Kensington, London, having been held for a few years at Earl's Court as well as regionally in the past at venues such as Brighton and Leeds.This is the UK's largest beer festival, with over 900 beers, ciders and perrys available over the week long event.