From Bonvert, take the road to Cornillon until you reach the gravel pit on the right. Park in the car park.
(S/E) From the car park, follow the path to the left of the ‘Gravière aux Oiseaux’ welcome sign.
(1) At the fork, follow the signposts on the right towards the maze and the gravel pit building. Once you’re nearby, turn left towards the observatory and the educational pond.
Retrace your steps and continue left along the path running alongside the meadow.
(2) Turn left onto a boardwalk to reach the observation hides. Then climb up onto the Loire embankment and continue to the left.
(3) Turn left to come down from the embankment and pass between the two ponds.
(1) Carry on to the right to reach the car park (S/E).