During the three-minute film he is seen to climb out of the top floor window and on to the other side of the stone balustrade, before walking around the outside of the building.
Later on he is seen doing the same thing on the level below, but this time walking along the top of the narrow windows – but again without any kind of safety equipment.
A member of staff at Loch Fyne said the incident was being dealt with internally by the restaurant chain's owners Greene King, and added that they had been in contact with the health and safety team at Bath and North East Somerset Council.
B&NES yesterday confirmed it was investigating the incident.
More at source: Bath.UK