If you are going to visit the Jewish Quarter, a guide is recommended. There's so much to be told about this area. You can walk through the Jewish Quarter and the ghetto, but only a knowledgeable guide can fill in the gaps between what is there today and what was there in the past and what has happened in the past. We took the free walking tour from St Mary's at 2:00pm. Our guide, Ella lived in Krakow her whole life. She speaks good English and has a wealth of information. She is very friendly and can answer all your questions. The tour is free but a tip is requested. We had no trouble leaving a tip as the tour was well worth it. A lot of walking - wear comfortable shoes.