Sadly, Krystyna's life began to unravel after the war.

BBC: Polish spy Krystyna Skarbek remembered

In response to this, the Amber Trail Greenway was set up in 1996 by Krystyna Wolniakowski, one of the founders of the Environmental Partnership for Central Europe, and Bill Moody from the Rockefeller Brothers Fund.

BBC: Forgotten landscapes outside Krakow