The caliphal rábita of the Dunas Historical milestone · Guardamar del Segura, El Baix Segura, Alicante Beneath the dunes of Guardamar a complex of cells and oratories of the 9th and 10th centuries was excavated: the oldest known Islamic ribat in the Peninsula. Its inscriptions date the building to 944 and document the devotees who withdrew there. siglo X Photo: Qoan (Enrique Íñiguez Rodríguez) (CC BY-SA 3.0) What to see and do in Guardamar del Segura