The lighthouse at Rubjerg Knude first lit its light in 1900. It is 23 meters high, but over the years much of it has been swallowed by sand. It closed down in 1968 when the authorities gave up fighting the sand, that has swallowed the smaller buildings around the lighthouse. Today the dune has moved past the lighthouse, and within the next decades it will tumble into the ocean due to erosion.
Rubjerg Knude was created about 28,000 years ago when the ice came down from Norway and pushed up the cliff as it appears today.