A guidebook to 38 walks and 4 short treks of 3-4 days in the Picos de Europa mountains of northern Spain. The walks cover the areas of Cangas de Onís, Cabrales, Liébana, Valdeón and Sajambre and range from easy valley hikes to ascents of the high peaks, so there is something to suit every ability. The walks range from 6 to 22km, and take between 3 to 8 hours. Four short treks of 3-4 days are also summarised in brief. 1:50,000 maps included for each walk GPX files available to download Detailed information on accommodation, facilities and public transport Highlights include the Covadonga lakes and the Cares Gorge Information given on local geology and wildlife