Cave of Eirós Nature · Triacastela, Sarria, Lugo The cova de Eirós is a karst cavity located in Cancelo, in the municipality of Triacastela (Lugo), at the foot of the sierra of the Oribio. Excavated since the 1990s, it has yielded remains of more than forty cave bears and lithic materials from the Middle and Upper Palaeolithic; in 2008 the discovery of lithic industry worked with the Levallois technique, attributed to Neanderthal humans from around 35,000 years ago, was confirmed. On 20 August 2012 the discovery of cave paintings and engravings of the same age was made public, the first example of rock art found in Galicia, which led to its declaration as a Bien de Interés Cultural (Spain's highest level of heritage protection) and makes it one of the most important Palaeolithic sites in the north-west of the peninsula. Photo: Praza Pública (CC BY-SA 3.0) What to see and do in Triacastela