“They were fiercely independent and quite audacious, and while they threw themselves into their hard and gruelling work, they are also remembered for their propensity for fun and adventure. In addition, they were one of the most decorated volunteer organisations and amassed an outstanding number of honours and medals”. from War Girls: The First Aid Nursing Yeomanry in the Great War by Professor Janet Lee
FANYs were permitted to within 500 yards of the British front line trench which often meant that they got as far as the reserve and support trenches. Certainly well within the zone subject to artillery fire and within reach of some small arms fire. Unofficially some got as far as the front line first aid dug outs. I've found some photos of FANY's at the front wearing 'tin helmets'. I'll post this week end.