A Holocaust survivor who lived through four concentration camps as a young boy will return to Auschwitz to mark 80 years since the liberation of one of the Nazi's most notorious concentration camps.

Naftali Fürst, now 92, is one of a dwindling number of Holocaust survivors able to share first-person accounts of the horrors they endured.

When Teresa Regula arrived at Auschwitz as a 16-year-old, the first real pain she experienced was of her ears burning. "They shaved us down to bare skin, and it was a scorching hot day, August 4... That was the first authentic pain I felt,

The dwindling numbers offer a stark representation of the declining population of survivors who are still able to tell their stories.