-Walk down the Cours Mirabeau, the city's main drag
-Go visit Cezanne's family country home
-Visit Cezanne's studio:
-Have to make a visit to the Cathedral
You also need to visit the Musee Granet, but I don't have any pictures of that. :(
-Also check out the Bibemus quarry, where Cezanne hung out and did some painting: