Driver John Clift died when two ambulances collided near Pwllheli last April.
Ambulance workers across Wales will today (Friday) mark the one year anniversary of the collision of two ambulances which resulted in the death of ambulance driver John Clift and seriously injured two colleagues.
On 28 April 2016, his patient transport vehicle collided with an urgent care ambulance on the A499 near Pwllheli. Ambulance staff, Air Ambulance teams and other emergency service workers rushed to the scene to help their colleagues.
UNISON has contributed to a memorial bench which will be unveiled at a ceremony at Pwllheli ambulance station today. An ambulance will also be named in John's honour.
Darron Dupre, ambulance organiser for UNISON Cymru said, "Ambulance staff come to work every day to save life and to provide emergency care often under difficult and traumatic circumstances.
"These people do vital jobs for our community and today we mourn John and remember seriously injured colleagues and celebrate their public service helping patients in Wales. We offer our solidarity and support to their families at this harrowing time.
"Today is Workers' Memorial Day. It remembers all those workers, worldwide, who died in the line of duty, at work. Sadly, one WAST colleague will be forever remembered in Wales."