El Fraile Island
El Fraile Island (Friar's Island; ) is a steep island located east of the urban centre of Águilas (Murcia), Spain. It has infra-Mediterranean vegetation and one of the richest seabeds in the southeast of the peninsula, especially due to its populations of oceanic Posidonia. It is a place of passage and sighting of dolphins and has an important colony of seagulls. Geologically it belongs to the Subbaetic System, as a part of the Maláguide and Alpujárride systems. During the Late Roman period (5th c.), a garum factory was erected in the island, with several processing vats. It has been declared a Protected Natural Area. It has been proposed that the oronym "Fraile" ("Friar") could have evolved from the term "farellón" (equivalent to farallón, 'sea stack'). It is a popular place for practicing  nautical sports due to its particular orography and the protection it offers from the east, the predominant wind on its coast. References 

Landforms of the Region of Murcia
Underwater diving sites
Uninhabited islands of Spain