| Dunetype | 4a |
| Description | The dunes in the 4th dune sequence are also roughly 15 to 20 meter (49 to 66 feet) in dune height. They may be very close (within 50 meters, 164 feet) of each other, with adjacent dunes tending to range from a 50 to 90 meters (164 to 296 feet) spacing apart. |