Coastal dunes colonised by Mediterranean and Atlantic thermophilous pines, corresponding to substitution facies or in some stations climax formations of evergreen oak of artificial origin (Quercetalia ilicis or Ceratonio-Rhamnetalia). Typical species are Pinus pinea, Pinus pinaster, Pinus halepensis, Juniperus macrocarpa, Juniperus turbinata ssp. turbinata, Scaligeria napiformis, Rhamnus alaternus, Arbutus unedo, Erica arborea, Pistacia lentiscus. This is the coastal equivalent of unit G3.7.