The maximum group size for prebooked tours organized by Escape2Poland is 20 people (unless the museum is very busy and can not give us any additional guides). Whenever our group is over 9 people we provide a, FREE of charge, extra headphone system so everyone has a chance to hear the guide well.
Student Group in Auschwitz
The maximum group size for prebooked tours in Auschwitz is 30 people.
There is no maximum group size for non prebooked tours in Auschwitz (during the high season it happens that groups are over 45 people).