A snapshot of a wooden area from Auschwitz (ASM neg. 282, close up from Swiebocka, Auschwitz: A history in photographs): Four naked women are walking to the left. Several other, unidentifiable persons and benches with clothes can be seen in the blurry background as well as two dressed male persons. The scene resembles the undressing of women. Without further context, it might show the bathing of people.
To say one thing straight away, the photograph was taken in Auschwitz-Birkenau. More precisely, the scene is taken place at the front yard of crematorium 5. Its eastern chimney is visible in the bottom right corner as observed by Auschwitz researcher Jean-Claude Pressac (Pressac, Technique, p. 424)