Hi! The website below is a great resource it's in Spanish but Google Chrome browser translates to English ; very easy to use and understand! Move through the stages and for example stage one click on Matasinhos and it will open a list of relevant places to stay in that location and so on along the path to Santiago it also shows the Senda Litoral. You can set your own distances and stays depending how far you want to walk the stages on Gronze are just recommendations.
El Camino Portugués de la Costa sigue el litoral atlántico desde Porto, pasando por Viana do Castelo, A Guarda y Vigo, hasta unirse al Camino Portugués Central en Redondela. Utilizado desde el siglo XVI por los peregrinos, este camino está creciendo de forma imparable. Motivos no le faltan...
www.gronze.com
It has links to the Albergue Hostel or Hotel reviews prices and contact details and their websites ,plus booking.com if that property uses Booking .com (great because booking.com has free cancellation up to a few days before you arrive so can change plans if you need to)
Get the
Wise Pilgrim app Michael is a forum member ; has so much info and is easy to follow and use!
These two are all you really need to walk the Coastal and Espiritual (you will love the Spiritual it's really great and the best bit of the walk in my opinion)
If you have time stay a couple of days in Porto i think it has such a great atmosphere plus so much to see and do!
If you do want a guide book download it to your phone (saves weight) others will recommend hard back ?paperback but i just listen to my books apps on audio!
Walk out of Porto along the river(should be on your left) to the sea and your on your way!
Have a wonderful walk
Buen Camino
Woody