This is is a Dutch video on Vlieland island.
From AgriMedia in the Netherlands:
On Vlieland [island] the spotted rockrose has been found, a plant which is nearly extinct in the Netherlands. In 2007, in the dunes of Vlieland, over fifty specimens of this plant have been found. Now, it is the only place in the Netherlands for the spotted rockrose. …
According to Floron, the decline of the spotted rockrose is caused by fertilizer and acidification problems in the dunes.