I went to Krakow in early Dec last year! I booked Tango House just off the main sq through booking. com - was about £42 per night, pay on arrival! They arranged pick up from airport for £20, I got the train back to airport! Flights were £65 return from stansted through Skyscanner! Did a free walking tour, just pay a tip at the end. Schindler museum, cathedral tour, castle tour and pub crawl booked through Get Your Guide! Hotel booked Auschwitz and Saltmines