Next to the beach is the impressive Gorliz Hospital (formerly the Marine Sanatorium) founded, 29th June 1919 by Doctors Areilza Larrinaga for the treatment of child tuberculosis. Built in collaboration with the provincial Government, The Sisters of Charity, the Women’s Institute, it was the first reinforced concrete building in Spain. The location is a key enclave for the treatment of child tuberculosis, thanks to sunray treatment (Gorliz has the most number of days per year of sunshine in Bizkaia) marine iodine.