Hi Maeva! I did the route to Santiago with my friend David (the photos you see are on his website) in 2000. It was an incredible experience (I'm sure your father will say the same) , and one of the very best holidays of my life. We didn't rush the journey, usually getting up at 5.30 am and cycling until 12.00 every day (to avoid the Summer heat!). There are some fabulous places throughout northern Spain, and everywhere we went, we made friends and met very friendly people. I want to do it again, but the next time I'd like to do it on foot, although I'll need a lot longer than the ten days it took me by bike! Another possibility is to do the 'silver route', which starts in Seville in southern Spain and goes to Santiago either through spain or through Portugal.