This is a Dune account now: "The iconic landscapes of Wadi Rum in Jordan and southern Africa’s Namib Desert have long been celebrated as the visual inspiration behind the fictional world of Arrakis in Frank Herbert’s 1965 sci-fi epic, Dune. However, the true origins of Herbert’s imagination lie closer to home, along the misty shores of the Oregon Coast."
These are the real dunes that inspired Dune—and you can visit them
The inspiration for the desert planet of Arrakis and many of Dune’s environmental themes lies along a remote stretch of Pacific Northwest coastline.
nationalgeographic.com