As the wind usualy blows out on the Tohe (90 mile beach) you can see the dry sand being picked up and skimming along the surface.
If you are close to where you came on, or by an onramp and you see the sand being blown along from BOTH directions and into the onramp that you came off (instead of just moving in one direction and going past the onramp) that means "Go Home"
Most people know that Cape Reinga, in the Maori world, is the departing place of the wairua (spirits). But how do the wairua get there? They travel along to Tohe.