Guardamar del Segura or briefly Guardamar is a municipality of the province of Alicante located at the mouth of the river Segura in southern Valencia, Spain. It is a Mediterranean resort, with a large pine forest abutting an 11-km-long white sand beach.
Historically an area of fishermen and farmers, Guardamar del Segura is the southernmost point where Valencian is spoken. A Phoenician colony, called Herna by Roman geographer Avienius in his book Ora Maritima was the first settlement near the mouth of Segura river, In Spanish, "guardar" means "safekeeping" and "mar" means "sea", and this is another possible basis for its current name.
Wikipedia https://en.wikipedia.org/wiki/Guardamar_del_Segura
Coordinates 38°5'23.995" N -0°39'13.716" E