text: The caverns of the Grotte du Grand Roc , to the northwest of Les Eyzies , are a natural rather than a historical phenomenon , but well worth a visit for the weirdly shaped stalagmites and stalactites and the panorama of the V ? ? zyre Valley .
  
  ###
  
  The caverns of the Grotte du Grand Roc are located to the southeast of Les Eyzies .