Guided tour: The Jardeheu headland as seen by a geologist

The rocks of Pointe de Jardeheu tell a story that seems as distant as it is unimaginable today, transporting us back between 610 and 575 million years, to a time when La Hague was probably just a string of islands, bordered to the north by a vast ocean and to the south by a small marine area located near the supercontinent Gondwana.
Thanks to plate tectonics, La Hague was situated close to the South Pole! These islands, likely of volcanic origin, were fed by magma chambers, which are now accessible thanks to erosion on the reef flat and reveal the intrusion of four successive magmatic episodes. 
Pointe de Jardeheu also bears witness to a much more recent history: the formation of a beach 115,000 years ago, just before the last ice age. 

The program includes:
– Introduction,
– Concepts of time in geology,
– Rock cycle and plate tectonics.

Duration: 3 hours – Distance: 4.5 km – Recommended for ages 8 and up.
Difficulty: difficult (orange) – Progression across pebble beach, rocks of the foreshore, wet and slippery area.

Booking is required through the Cotentin Tourist Office.
The meeting point will be provided after booking.