Root port

Port Racine cliffs have a succession of geological training courses dating from the interglacial penultimate (Eemian, between 115 and 130,000 years) and the last glacial maximum (Weichselian, between 115,000 and 14,000 years).

Concretely, above the current rocky plate is thus:

• A perched beach dating back 106,000 years (evidence of a temperate climate with a sea level 3 meters higher than today),
• then a layer of head (a flow of angular rock debris formed in cold and humid climates),
• and finally a layer of loess (fine particles transported by the wind in cold and dry climates).

The site is also known for these traces of occupation by the Neanderthal man (flint and old households dated 60,000 to 80,000 years).

Erected by the Corsaire François-Médard Racine in the 19th century, but used as an anchorage from the Middle Ages, the root port is considered to be one of the smallest ports in France with these 27 moorings.