A good route over the Pyranees, leave Pamplona, then use the N135 toward the hills. The road has a few places where it is easy to get lost, keep using the signs to France. The route goes through quite an easy pass, but the road is interesting and fairly quiet, even in summer, although there are a few of the obligatory mad cyclists. There are a few shops selling food, but these open infrequently, there are no petrol stations! Join the D933 toward St Jean Pied de Port, you seem to be quite suddenly in town. Stop at one of the cafes, no greasy meals, but very good coffee.