Dangers & Annoyances
Picos weather is notoriously changeable. Mist, rain, cold and snow are common problems – and often arrive suddenly without warning. When the summer sun shines, you need protection from that too. Higher up, few trails are marked and water sources are rare. Paying insufficient attention to these details has cost several lives over the years – make sure you're adequately prepared. The emergency phone number is 112.
The best maps of the Picos, sold in shops in Cangas de Onís, Potes and elsewhere for €5 to €6 each, are Adrados Ediciones' Picos de Europa (1:80,000), Picos de Europa Macizos Central y Oriental (1:25,000) and Picos de Europa Macizo Occidental (1:25,000).
The national park has three main information centres.
Centro de Información Casa Dago For the Western Picos; in Cangas de Onís. Offers Picos-wide hiking and access info.
Centro de Visitantes Sotama For the Eastern Picos; on the N621 in Tama, 2km north of Potes. Provides hiking details and excellent exhibitions on Picos geology, rivers and wildlife.
Oficina de Información Posada de Valdeón For the Southern Picos. Hours can vary considerably.
Other information points are open at strategic places around the national park from 1 July to 15 September and during other major national holidays. Local tourist offices provide information, too.