Once your GPS track is chosen and paid, it is automatically sent to you by email in version ". GPX" usable on all GPS or on your smartphone via an offline GPS application like Osmand Maps (recommended) which is downloadable for free on IOS or Android.
On Osmand maps, you must download the map of Aquitaine and the Spanish Basque Country for free and then, from your email send your GPX file to Osmand Maps, you will instantly find it on the map and you will only have to follow like a classic Gps.
For a future use, you will find the track in the drop-down menu at the bottom left then in "navigation". A map of the region in PDF format will also be sent to you by email with fuel points, meals and views.