Park in the Étang des Forges car park.
The trail is marked with a Yellow Ring.
(S/E) Head to the edge of the lake, turn left and follow the bank, cross the Canal du Martinet and continue along the edge of the lake. Head towards the Allée des Charmilles.
(1) Cross the road and continue straight ahead. Head towards the observatory junction.
(2) Option to make a return trip to the observatory (200 m). Join the path then continue straight ahead.
(3) At the next junction, turn right and follow the path as it curves away from the edge of the pond. Reach the edge of the woods.
(4) Turn right to reach the edge of the pond, pass the water sports centre, and continue along the edge of the pond to the car park (S/E).