The Conseil départemental and its partners invite you to discover some sometimes unusual natural areas and the flora and fauna typical of the Mayenne region.
Every 5 years, the Haute Mayenne lake is lowered by 2.5 metres. Find out more about how this vital space works for the people of Mayenne. When the lake is lowered, a huge area of mud is revealed, where many migratory birds stop off to feed. Take the opportunity to observe and discover them.
Registration with the Centre Permanent d'initiatives pour l'Environnement Mayenne
Registration with the Centre Permanent d'initiatives pour l'Environnement Mayenne
Rates
Rates
Free
—
Opening times
Opening times
On 27 September 2025
- 14:00 at 16:00
