Texture:
* The sand was as fine as powdered sugar, slipping through my fingers.
* The beach sand was like coarse salt, gritty and rough against my skin.
* The sand felt like velvet, soft and smooth under my bare feet.
Appearance:
* The desert sand shimmered like a field of gold under the scorching sun.
* The wet sand on the beach gleamed like a million tiny diamonds in the sunlight.
* The dunes of sand stretched out like giant waves frozen in time.
Feel:
* Walking on the hot sand felt like walking on a bed of coals.
* The cold sand on my bare feet felt like a million tiny needles prickling my skin.
* The sand in my swimsuit felt like a thousand tiny grains of sand rubbing against my skin.
Movement:
* The sand blew in the wind like a river of dust.
* The waves rolled onto the shore, like a giant hand pushing the sand back and forth.
Choose the simile that best fits the context and the feeling you want to evoke!