Lago de la Ercina

  • Lago Ercina - © Flickr user chausino
  • © Flickr user reidrac
  • Picos - © Flickr user jroblear2

Key information: Lago de la Ercina

  • Beautiful circuits from perfect lakes in the western massif of the Picos de Europa, a stunning, jagged mountain range running along Spains northern coast.
  • This is high country, exposed to Atlantic weather; trails can get cut off by snow in Winter, and the area is famous for sudden and dramatic mists.

Walkopedia rating

  • Walkopedia rating90
  • Beauty34
  • Natural interest16
  • Human interest8
  • Charisma32
  • Negative points0
  • Total rating90
  • Note: Neg: can get crowded in high season and at weekends

Vital Statistics

  • Length: 4 - 20km / Day walks
  • Level of Difficulty: Variable
Picos - © Flickr user jroblear2


These routes start and end at the Lago de la Ercina lakes (Ercina and Enol), the primary visiting points of the Picos de Europas western massif. High and isolated, these are classic pastures, impassable from November to May, that afford great views (when cloud allows) of pastoral landscape, glacial lakes and high peaks on lush turf scattered with a host of seasonal wildflowers.

One of the advantages of this area is that if offers opportunities for groups of mixed enthusiasm and ability to split up and please themselves: a (very beautiful) 4km circuit around a hill and visiting the two lakes; a 7.5km circuit (subject to mist) and a 16km hike (with a couple of steep ascents and descents) up to the wild, empty vegas at the Refugio de Ario. See Routes below.

Important: This area has a peculiar weather structure which often produces thick mists in the afternoon; the descent path (walks 2 and 3) from Majada de la Redondella is easy to lose and should not be attempted under these conditions; simply reverse your route back past Lago de la Ercina. Also note: however tempting, swimming is not allowed in the lakes. 

See out Picos de Europa page for general information.

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Safety and problems: All walks have inherent risks and potential problems, and many of the walks featured on this website involve significant risks, dangers and problems. Problems of any sort can arise on any walk. This website does not purport to identify any (or all) actual or potential risks, dangers and problems that may relate to any particular walk.

Any person who is considering undertaking this walk should do careful research and make their own assessment of the risks, dangers and possible problems involved. They should also go to “Important information” for further important information.

Anyone planning an expedition to this place should see further important information about this walk.

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Anyone planning an expedition to this place should see further important information about this walk.


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