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 (autonomous community), 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 Valenciano (a dialect of Catalan) is spoken.
A Phoenician colony, called Herna by Roman geographer Avienus 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.
Guardamar is the southernmost Catalan-speaking town and in 1991 41.8% of the town's residents knew how to speak it.
Guardamar hosts local festivals like Moros i Cristians, L'Encantà, and Fogueres de Sant Joan, which commemorate its history.