A health board has rejected criticism by hospital staff who have had difficulty travelling to work during bad weather.
One nurse at Ysbyty Gwynedd, Bangor, said she was taken to work by 4x4 driven by a volunteer, but no transport was provided to take her home.
Betsi Cadwaladr University Health Board acknowledged some staff were unhappy.
A spokesman said the priority was keeping the hospital running.
One nurse told BBC Wales she was told during her late-night shift that no transport would be provided to take her home.
A health board spokesman said many of the staff who were unhappy lived in areas where colleagues had managed to get to work unaided, and buses were now running to those areas.
He said the hospital felt that some staff were going against the spirit shown by others who had gone out of their way to get to work.