The Cairn is a town located by the sea, for many years their homes belong to one side of Alicante province and the other in theRegion of Murcia . This is a parish under the municipality of Pilar de la Horadada in the province of Alicante , in Valencia ,
Spain , while the other part of the area is part of San Javier , the Region of Murcia , Spain ; limiting the nature reserve south of Salinas and Arenales de San Javier . This group of houses is shared between the two municipalities. When placed on the coast the population is low in winter, with 376 inhabitants in the Alicante and Murcia in 277 ( INE , 2008 ), but multiplies in summer. Located in the landmark (hence the name) that limits the Valencia and Murcia .
Since the formation of the Municipality of Pilar de la Horadada, Orihuela segregated in the late twentieth century (30 July 1986), has undergone a very high development pressure, the developments created virtually link to the Torre de la Horadada , another coastal town of Pilar de la Horadada. The ancient natural landscapes have given way to good beaches, well equipped with amenities. Development pressure in the area of Murcia has been little or almost no park to be protected Salinas which has allowed maintain environmental values of the area.