They are believed to be 60 million to 80 million years old, made of sand pushed inland over the eons from the coast by Atlantic Ocean winds that sweep onshore 80 kilometers to the west.

CNN: Romancing the dune in Namibia

Other features in Denbighshire which have been given QR codes include the Clive Engine House at Dyserth, Rhyl lifeboat, the Llangollen international pavilion, Gronant sand dunes and the old jail at Ruthin.

BBC: North East Wales

However, his drive found sand and the 48-year-old American had to settle for a bogey and a final round of 69 that left him tied at 14-under 270 with Hoffman who had started the fourth round two shots off the lead.

CNN: Perry banks title after play-off birdie

Dog In The Sand finds him back on form, although his obsessive quest for old-fashioned authenticity isn't finished yet.

BBC: CD Review: Frank Black

Walking along a quiet stretch of white-sand beach, I've come to appreciate this remote retreat of old-school fishermen, miles of mangroves and spectacular ocean views.

CNN: A beach break in Bimini

As in the old Charles Atlas ads, the 97-pound weakling eventually gets tired of having sand kicked in his face, heads off to the gym and becomes just as muscled as the bully.

FORBES: Can Kroger Beat Wal-Mart?

To Obama, the old order of securities created by contracts freely entered into is like the "house built on sand" in Jesus' parable.

FORBES: Commentary

You may well have read about this, but there, among the machair grass and sand dunes, they are recreating a golf course first designed by the father of golf, Old Tom Morris.

BBC: NEWS | UK | Scotland | Rain, tiny planes and automobiles