Chapter-General processing into St Paul's Cathedral, flanked by a guard of honour of St John Ambulance volunteers

St John’s Day is celebrated in London with a ceremony that combines all the grandeur and pageantry of the Order of St John’s historical past with a contemporary message relevant to St John Ambulance today. The celebrations begin with Holy Communion at the Priory Church followed by the General Assembly at Mansion House, and finishing with the Annual Service of Commemoration and Re-dedication in the magnificent baroque setting of St Paul’s Cathedral.