sentences:  A second geophysical survey of the surrounding fields to the west and south of the site was organised by the Friends of Gannocks Castle, and carried out on 1 December 2006, by geophysical engineers, in the form of a Fluxgate Gradiometer survey.Restoration of Gannocks Castle was begun in 1998, with an opening day Medieval fair on 19 June 2006.The local Member of Parliament, Mr Alistair Burt MP, was a guest speaker.