The group then set out to retrace the steps of Jews driven from the ghetto during its 1943 liquidation to the forced labor camp in Plaszow about a mile away where some 8,000 Jews and non-Jewish Poles perished during the war.
Some survivors were making their first trip back to Poland since World War II.
On March 13, 1943, German soldiers started a two-day action in which they emptied the ghetto of its estimated 16,000 Jewish residents, shipping them to Plaszow and to the Auschwitz-Birkenau death camp. Some 2,000 Jews left behind were executed.
Only 3,000 of the ghetto's former inmates survived the war.