Hotel Torrecerredo "The little hotel with the very big view"

Trekking & Climbing in Northern Spain by Jim Thomson & Ilja Schroeder. For obvious reasons, we recommend this book. In our opinion, its probably the best book ever written!

Picos de Europa Walks by Teresa Farino. If you´re not in agreement with the above, this makes a great alternative. (you owe me Teresa)

Picos De Europa y Costa Oriental De Asturias, Mapa Excursionista [Folded Map] 1:80000 map of Picos and nearby coast (due to scale, not really very good for walking, great for getting a feel for the area)

Picos De Europa, Macizos Central y Oriental (Los Urrieles y Andara) [Folded Map] 1:25000 map of Central & Eastern massifs. Great for walking, but be aware! Routes shown on map DO NOT indicate a good path, purely a nice excursion according to the author.

Picos De Europa, Macizo Occidental (El Cornion) [Folded Map]1:25000 map of Western massif. Great for walking, but be aware! Routes shown on map DO NOT indicate a good path, purely a nice excursion according to the author.

All three of the above maps are readily available locally (and cheaper)