Landward-advancing Quaternary eolianites of Bermuda

•We investigate the orientation and internal structure of Bermuda’s Pleistocene eolianites.•Slip-face dip azimuths do not align with the present-day resultant drift direction.•Dunes advanced landward away from source beaches.•Carbonate cementation was not sufficiently rapid to influence dune emplacement.•Mobile advancing dunes encroached onto interior terrain and entombed standing trees.