Oñati-Arantzazu. The Valley of Knowledge, that is how we like to name this valley, the most isolated of Gipuzkoa. Because the first university of the Basque Country was founded here, almost 500 years ago. Because the largest cooperative group in the world started here 70 years ago. And because the Sanctuary of Aranzazu, a symbol of modernism and avant-garde movement in the Basque art, is also located here.