Fortín del Peñón de Gaztelu Historical milestone · Lemoiz, Plentzia-Mungia, Bizkaia Image of Lemoiz, not of the place itself. Coastal fortification built in the 18th century as part of the defence of the Lordship of Biscay, which had disappeared by the first third of the 19th century. Photo: Mikel Arrazola (CC BY-SA 3.0) What to see and do in Lemoiz