Start from Boissy Town Hall.
(S/E) With your back to the town hall, take the Allée du Château to the junction near the inter-municipal ditch.
(1) Turn left onto Rue du Moulin à Vent, then immediately right along the ditch and continue until you reach the D113.3.
(2) Keep left and cross the D21 at the junction.
(3) Carry on straight ahead, passing the Croix des Pèlerins, until you reach the cemetery at Saint-Laurent-la-Gâtine. Take a moment to explore the burial place of the Lords of Boissy. Continue along the road to the hamlet of Saint-Laurent and its church.
(4) Take a moment to admire its pediment and leaning bell tower, then turn right and continue straight on along the D306.5 to L’Aumône. Pass the solitary oak tree and reach a Fork in the road.
(5) Carry on along Rue de la Madeleine, passing the oratory of the same name.
(6) Head opposite towards the farm to take the Sente de la Petite Mare on the right. Turn left onto the road and carry on until you reach Rue de la Croix de Fer.
(7) Turn left, continue along the D306.6 and keep to the right until you reach the Croix de Fer.
(8) Turn right, taking care, onto the D21 for 30 metres, cross it and keep left onto the track. Turn onto the first track on the right and, at the next junction, turn left and continue until you reach Rue du Gland.
(9) Carry on straight ahead, alongside the woodland, and turn left onto the Chemin de Croisilles to reach a junction. Turn left onto the Rue des Grandes Vignes.
(10) Turn right and, once you reach the main street in Amfreville, first turn right then left to rejoin the Allée des Trembles, which leads to the town hall. (S/E)