It's hoped someone will come forward with information about a two-year-old girl who disappeared near Queenstown 25 years ago this month.

Amber-Lee Cruickshank went missing from the beach at Kingston - a town at the southern end of Lake Wakatipu.

READ MORE: New podcast delves into chilling cold case

Warwick Walker was the first detective to work on the case.

He told Mike Hosking there's a chance remains will be found somewhere accidentally but says generally in these cases, someone knows what's going on.

"Sometimes a change if allegiance over time can mean that somebody will come forward and that's really what I think we have to hope for now."

The Herald has just released a six part podcast on the case called 'Chasing Ghosts'.

LISTEN ABOVE AS WARWICK WALKER SPEAKS WITH MIKE HOSKING