this route is well marked, i just finished walking it, on december 1. alot of people were biking it, im not sure about the walk over the mountain range after ponte de lima, that was the most rugged climb. i had alot of water, mud etc. the roads are narrow, watch your back, and i stayed at alberques, as i was the only person walking, most of the time, but some nice hotels offer discounts, like in Cee, 25 euro, and you will find private pensions and hotels that offer discounts, have fun!