Spa of Tus Nature · Yeste, Sierra del Segura, Albacete Image of Yeste, not of the place itself. Spring of mineral-medicinal waters located in the valley of the river Tus, in the spot known as the Hueco de Tus, whose use dates back, according to tradition, to Roman times. The spa was rebuilt under the patronage of the Archbishop of Valencia, Martín Pérez de Ayala. Photo: carlos corzo (CC BY-SA 3.0) What to see and do in Yeste