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Goury
Between Cap de la Hague and the Channel Island of Alderney, one of the most powerful tidal currents in Europe occurs: the Raz Blanchard. It has fostered the accumulation of a pebble beach emblematic of La Hague.
The great oil variability of the pebbles, makes it possible to illustrate almost all the geological history of the geoparc: granites, Dolerites, Rhyolites, Gneiss, Schists, sandstones, flint Cretaceous ...
The thick coastal cord of pebbles covers the cadomian granite of the rocky plate (575 mA) still visible in its lower part and at the end of the rocky tip which closes the handle. It is a sedimentary training made up thanks to the increase in the sea level which started almost 18,500 years ago. Delimited by two rocky points, the handle constitutes an sheltered area favorable to the accumulation of sedimentary equipment (here pebbles due to the strong currents offshore).
These pebble cords were very popular resources from the prehistorics who used them to recover from the raw material to the manufacture of their tools.
The site is also a major site for the Grand Gravelot, a sort of threatened and protected bird whose eggs resemble small pebbles. From April to July, during the laying period, it is therefore strongly advised not to walk on the pebbles.
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Goury
Auderville
50,440 La Hague