Where you are right now connecting to Wifi at home.
1. Open the app. It will show your current location.
2. Zoom out so you see world map.
3. Then zoom in to France near Vezelay. If you zoom down enough the app will ask if you want to download the offline map of that area. Say yes.
4. Once that is done, just move the map like you are walking towards SJPDP.
5. As you move out of the region into another region, the app will ask if you will also like to download that region.
6. So there could be multiple regional maps to download before you hit SJPDP.
Alternatively, just go to settings, choose download maps, choose France and download the offline map of the entire country (more storage required).