Unit 2 comprises fluvio-deltaic sands, pebbles and granules which are often floating in a poorly sorted massive sandy matrix without further evidence of bedding. It builds up parts of the spit shoulder and the surface underlying the paleodunes. The unit is subdivided by the presence of a paleosol into a more reddish brown, lower (2a), and a more light brownish and less carbonaceous upper (2b) subunit.