The menhirs of Brittany are large, mostly solitary monoliths erected by the people of the Megalithic culture, some of which were later toppled or repurposed.
The pottery found dates this tomb to around 2500 and 3500 BC. This tomb with a side entrance, more than 15 meters long, was very degraded. It is 15 meters long and is a real spectacle.
Magnificent view point on the banks of the Vilaine as well as Saint Malo de Phily. However, be careful with the descent following the GR which can be perilous in wet weather (Large difference in altitude)
We can observe an unconformity between rocks coming from two geological periods (Brioverian and Ordovician). To get there, follow the sign from the road, keep to the left of the path (private property).
The Breslon oak was apparently planted in 1598, on the occasion of the visit of Henri IV, returning from Nantes. Although having suffered from different storms, it is approximately 27 meters high and has a circumference of 6.45 meters