Greenbelt 2010 (http://www.greenbelt.org.uk/festival/ ), backed by global development agency Christian Aid and a range of other organisations, is expected to attract some 21,000 people from 27-30 August at Cheltenham Racecourse.
Its theme this year is 'The Art of Looking Sideways', and speakers include theologians Stanley Hauerwas and Richard Rohr, human rights activist Peter Tatchell, politician Clare Short, and poet Roger McGough.
It is also a showcase for performing and visual arts, debate, literature, alternative worship and music - this year including legends Courtney Pine and Gil Scott Heron.
As in previous years, Ekklesia is one of a wide range of organisations involved in events at Greenebelt, as well as supporting the 'Peace Zone' as a member of the Network of Christian Peace Organisations (http://ncpo.org.uk/greenbelt ).
I'm not going to be there myself - other commitments in Edinburgh beckon - but my colleagues Jonathan Bartley and Symon Hill, as well as other friends and associates, are going to have a busy Bank Holiday weekend.
Jonathan is part of the Faith in Politics panel at 11.15am on Monday 30 August, looking at 'What's wrong with our political system? (And how can we fix it?)'. He is also talking about 'The long adventure of rebellion: say goodbye to political apathy' (youth panel) at 5pm that day.
As an added twist (so to speak) Jon will also be wielding the drum sticks with his band The Mustangs (http://www.themustangs.co.uk/ ) on the music stage. Their fifth album, 'Cut Loose', was released in June 2010, and the group have been nominated for a series of awards at the British Blues Awards this year.
Meanwhile, Symon Hill, author of the newly published No-Nonsense Guide to Religion, published by New Internationalist, is debating Christian attitudes to the armed forces with RAF chaplain Mike Elliott in 'Christian warriors: To challenge or to minister?' at 11.30am on Friday 28 August.
Symon will also be a guest on Premier Radio's Breakfast programme on Sunday 31 August, which is coming live from the festival.
News, comment and reflection on Greenbelt will featured on Ekklesia here: http://www.ekklesia.co.uk/GreenbeltFestival 
Update: Jonathan Bartley has had to pull out of Greenbelt - http://www.ekklesia.co.uk/node/12973