It's always nice to break up a day of town walking with a bit of greenery. The entrance to the gardens is past the Papal Palace and Notre-Dame-des-Doms, so you get a chance to see the outside of the buildngs on your way in. Unfortunately, as you cross the courtyard in front of the Papal Palace you will also run into a largish number of people "canvassing" for various causes.
However, once past that, the gardens are very pleasant. It was nice to see roses blooming in October and I'd never seen tree-ripened olives or pomegranates before this trip. There's even a tiny vinyard.
There's a terrace-like section that has an excellent view of the Rhône Valley, but be careful of the footing: one of our group fell on either some loose or uneven paving. There is also an excellent view of the Bénezet Bridge from the garden as well. It's a very pleasant way to while away an hour or so.