Exhibitions in Piedras Blancas Saturday, June 22 17:00 Mieres 43 Kms. Saint John 2024 Exhibitions. You might be also interested in: Exhibitions in Asturias (1) Exhibitions in the province of Leon (4) Exhibitions in the province of La Coruña (1) Exhibitions in Biscay (5) Exhibitions in the Community of Madrid (10)