But the sands were giving way beneath their feet.

The leaves don't crackle under the tires, the sand doesn't give way.

The sand gave way under his feet, costing him traction.

On the point itself, sand gave way to rock.

They wear no shoes so the sand will chafe their feet and give them a challenge.

The white sand was giving way to some kind of darker stuff.

Also, sand on the ground will give more rolling resistance than concrete.

Here, the sands give way to the rolling hills from which the area takes it name.

The sand you're on may give way at any moment.

The sand beneath its feet gave forth no dust nor any sound.