The woods and riverbanks of Bourdon lake

Set off from the east side of the dyke. (1)
Take the road toward Saint-Fargeau for 800m. When you see the 1st stony path, turn right. After going past the Ferme des Caillots, turn right (2) down a dirt track. This track runs more or less parallel to the main road, which is 200m away, until you reach the hamlet of Guérins. However, you will need to cross over a little road (3) after following along the edge of the woods (Bois de l'Etang, on your right). When you reach the farm (Ferme des Guérins), go left around the buildings. Take the tarmacked road on the right after the “Stop à 150m” sign. This road soon becomes a path. (4) Walk alongside the hedge (some of the path is concrete) and then continue onto the little dirt track (the start of the track is not very clear). When you reach the little tarmacked road, walk down it to the right for 200m, to the village of Gauthiers. Turn right and then after the pond turn left (5).
Walk down this path and turn right at the first junction. Go straight on and at point (6), pass between the 2 stone columns to reach the dyke. On your left are the marshes and Charmoy river, and on your right is the start of the lake. Do not cross the dyke but turn right on the path that runs alongside the dyke or the wood, following the level of the water.
When you reach the second dyke, there is a campsite on your right and the water reservoir for the outdoor activity centre opposite you. Take the path that follows the riverbank or the woods, still following the level of the water. This path will bring back you to the main dyke.

A very pleasurable summer hike. Outside this period, aside the muddy paths in the woods during rainy weather, this hike is very invigorating. Ignore any waymarks.

You can swim in the private area near the campsite.
The village centre of St Fargeau with its castle and the museum of sound.
Quite nearby is the nature reserve of Boutissaint (wildlife reserve)