Getting to the John Paull II Centre is a bit complicated. A cab will cost you about 20-30zł, or take tram 8 or 22 to the end of the line at 'Borek Fałęcki' and walk about 10mins (you'll need to buy a 4.60zł single-journey tram ticket). There is also a 'Papal Bus Service' which runs direct from Bishop's Palace (ul. Franciszkańska 3) to the JPII Centre every hour on the hour from 09:00-18:00 (ticket 10zł).
Sanctuary of Divine Mercy
ul. Św. Siostry Faustyny 3 (Łagiewniki)