When you come to the beach when the water is receding, you will see dunes that adorn the beach; sand dunes that are naturally formed by waves and wind that bring sand to the mainland so that it forms a pattern.
To find answers about the process of the occurrence of sand dunes on the beach, I quote an explanation from geographi.org:
The process of forming sand dunes in coastal areas is not much different from that of forming sand dunes in desert areas. In the coastal area for the formation of sand dunes, there are several conditions that must be met, including: There are strong waves that move sand from the sea to the land. There is a beach that is quite wide and sloping, and is influenced by tides. geografi.org
After finding answers about the process of the occurrence of sand dunes, Now we return to the photo I shared.
I took this photo a few days ago using a smartphone camera at Ujong Blang beach, Lhokseumawe. When I got there, the sea water was receding, so I was able to take some photos of the sand dunes there.
Here is a photo of the sand dune that I took and as my entry today in the daily #monomad challenge organized by 
| Camera | SM-A515F |
|---|---|
| Flash used | No |
| Focal length | 5 mm |
| Exposure time | 1/353 s |
| Aperture | f/1.8 |
| ISO | 25 |
| Location | Lhokseumawe, Aceh |
| Taken by | Nailul Munar ( @bantamuda) |
| - | - |
