These palm trees are in the garden of the Valencian Environmantal Education establishment in Valencia, part of Sagunto Parc 1 which includes the Marjal del Moro. Not sure if they are all the same type as some had yellow flowers and some white but they do look similar.(I was more interested in the Pied Flycatchers which were there.)
Display Garden, created to show examples of the different mediterranean habitats.
I may have a photo of the description boards nearby, if not, next time I am passing by.