Santuario de Nuestra Señora de Udiarraga Monument · Ugao-Miraballes, Arratia-Nerbioi, Bizkaia Baroque-style religious building opened in 1780, one of the main monuments in Ugao-Miraballes. 1780 Photo: Txo (CC BY-SA 4.0) What to see and do in Ugao-Miraballes