RCAHMS surveyed St Ninian’s Cave between 1 October and 4 November 2004. An initial visit was made on 1 October 2004 to carry out a reflectorless total station survey to create true orthographic plans and elevations of the cave interior and to locate the incised crosses. On 2 November 2004, using tape and the data captured on the initial visit, the south elevation (Section A-A1) and cave mouth profile (Section B-B1) were drawn at a scale of 1:50. Between 3-4 November a ground plan of the cave was completed, also at a scale of 1:50.