There are 11 regional groups, and you can find these under the ‘groups’ tab in announcements.
South East: https://www.facebook.com/groups/842246460024590
London: https://www.facebook.com/groups/244608154432923/
East of England: https://www.facebook.com/groups/504958900739379
North East and Yorkshire: https://www.facebook.com/groups/1122125371606644
North West: https://www.facebook.com/groups/658629195515217
East Midlands: https://www.facebook.com/groups/1143533699472672
West Midlands: https://www.facebook.com/groups/930544720896487/
South West: https://www.facebook.com/groups/236677334572947
Scotland: https://www.facebook.com/groups/249240343669592
North Wales: https://www.facebook.com/groups/oagnorthwales/
South Wales: https://www.facebook.com/groups/oagsouthwales/
Northern Ireland: https://www.facebook.com/groups/600477444227015