The first BGG was held in 1994 at Watchfield, north east of Swindon. In 1995, the BGG moved to a site at Lower Pertwood Farm, about 10 miles (16 km) south of Warminster, in Wiltshire, and the event was repeated at that site in 1996, 1997, 1998 and 2000. The next BGG took place in 2002 at Winchester Farm on the Somerset Levels in Cheddar. In 2003, 2005, 2006 and 2007 the BGG was held at Fernhill Farm, a 160 acre (65 hectare) site which can hold up to 20,000 visitors, up on the Mendip Hills.
The BGG is described by its organisers as "for people who care about health, the environment, sustainability, our children's future and life in general. It is a celebration of our natural world and our place within it." Several ecological and anti-war groups such as Greenpeace have a presence at the festival. In 2005 featured former Environment Minister Michael Meacher, Bruce Kent from CND and Tony Juniper from Friends of the Earth.
On the festival site there are several distinct areas including:
Although the BGG is not a music festival, there is extensive live music performed at the festival. Past performers have included 3 Daft Monkeys, Damien Rice, and Banco de Gaia.