The Tottori Sand Dunes are unique sand dunes located near Tottori City in Tottori Prefecture, Honshū, Japan. They are the only large dune system (over 30 km²) in Japan. The dunes were created by sediment deposits carried from the Chūgoku Mountains by the Sendai River into the Sea of Japan. Sea currents and wind help bring the sand from the bottom up onto the shore, where the wind constantly rearranges their shape.
The dunes have existed for over 100,000 years, but the area of the dunes has been steadily decreasing due to a government reforestation program following World War II. Additionally, concrete barriers erected to protect the coast (the part of Sanin Kaigan National Park) from tsunamis have disrupted the currents responsible for bringing the sand to shore.
"Who would have thought that in Japan there is a desert... It turns out there! Though not a desert, but a large sand dune ..."