It's just a germ of an idea now - walking in Galicia with my two granddughters 17 and 21 - next May. Would like to visit friends for a day or two in Madrid, get a car, combine walking and driving from around Lugo to Santiago. Not interested in passport or certificate, just the countryside and the pleasure of my granddaughters' company. By next year they will be deep in college and career and I will be ??? Any tips?