Santuario Insular de Nuestra Señora de los Reyes Monument · Frontera, El Hierro, Santa Cruz de Tenerife A church at La Dehesa de Sabinosa where El Hierro's patroness is venerated. The image arrived on the island in 1546 and was first installed in the so-called Cueva del Caracol or Cueva de la Virgen; the present sanctuary was built in 1577 and remodelled in the 18th century. 1546 (llegada de la imagen); 1577 (construcción del santuario) Photo: Teknad (CC0) What to see and do in Frontera