Description
Did you know that the site of the filtering basins is a structure designed to filter the water leaving the Grimonpont wastewater treatment plant? And that it constitutes a formidable biodiversity reserve, offering refuge to many animals such as the elegant swan or the amusing green frog.
On this walk, you can not only observe them, but also learn about the journey of water!
**Meeting point**: 2.30pm
**Starting point**: allée des pêcheurs ? site entrance in Leers
**Public**: all
**Good to know** : Reservations required on 03 20 63 11 23 or [relaiscanal@lillemetropole.fr](mailto:relaiscanal@lillemetropole.fr)
**Price** : free of charge
