Get a good map! Unless you enjoy a bit of aimless wandering, taking in the peace and beauty and surprising yourself with your (lack of) geographical sense. Don’t underestimate the size of this cemetery and those lovely cobble-stoned avenues and curving lanes which take you in every direction. Don’t come here if you don’t have time. Explore and meander. You might even come across a few celebrity sites- not that it’s really essential.