The walk starts at the car park near the church in Aumont-en-Halatte, Route de Creil.
(S/E) Take the path at the far end and to the right of the car park, walk past the Saint Gervais Fountain and ignore the path on the right; continue straight ahead onto Rue de la Fontaine Saint Gervais and at the end turn right onto Route Forestière Sommière, ignoring four junctions on the right and left
(1) Turn right onto Route de Condé, passing the Carrefour d’Aumont. At the Carrefour Arthus, take Route du Mont Alta on the left. Continue to the Carrefour de l’Arbre à Fougères and turn right onto the GR®12B.
(2) Turn right towards Senlis (Chemin des Vaches). Ignore all paths to the right and left until you reach the D1330.
(3) Go through the tunnel under the main road, continue along this path which further on becomes Rue du Tombray. Arrive at the junction with Route d'Aumont.
(4) Continue straight ahead onto Rue du Moulin du Gué du Pont. Cross the Aunette bridge. Pass the cemetery and Senlis Courthouse on your left and continue straight ahead in the same direction until you reach Boulevard Pasteur.
(5) Follow it to the left until you reach the nearby roundabout. Then turn right into Rue de Villevert, then takethe first right into Rue du Cimetière Saint Rieul, then at the end take Rue Afforty, then Rue du Puits Saint-Saintin; at the end, turn left into Rue des Pigeons Blancs and then right into Rue Saint Pierre.
(6) Go round Saint Pierre Church via Avenue du General Leclerc; further on, turn right into Rue Bellon.
(7) Turn left onto Rue Saint Hilaire (shopping street), pass Place de la Halle, then take Rue de l'Apport au Pain.
(8) Turn right onto Rue du Chatel (13) and right onto Rue de la Tonnellerie, then Rue Saint Frambourg
(9) Saint-Frambourg Church at the end; turn left onto Rue du Chancelier Guérin.
(10) Square and Notre-Dame Cathedral (opportunity to visit the cathedral) and, opposite the cathedral, the entrance to the grounds of Senlis Royal Castle. Opportunity for a picnic in the grounds before or after visiting the cathedral.
(11) Royal Castle and Saint-Maurice Priory; exit via the same route and take Rue du Chatel on the right, ignoring the dead-end on the right.
(12) Turn right onto Rue Saint-Péravi, then left onto Rue de la Treille and left onto Rue du Chatel.
(13) Turn right onto Rue de la Chancellerie, then left onto Rue de la Treille and straight on onto Rue de la Poulaillerie.
(14) Turn right onto Rue des Vétérans and, at the end, left onto Rue du Puit Typhainord Est.
(16) Turn left onto Rue du Moulin du Gué du Pont. Cross the River Aunette.
(17) Head left onto Route d'Aumont, then take thefirst left onto Chemin de Creil; at the junction, turn right to join the D1330 and pass underneath it.
(18) On Chemin Royal, turn right and take thefirst path on the left.
(19) At the Queue de la Brosse junction, take Route d'Aumont.
(20) Take Chemin de la Procession on the left, pass the two junctions on the left, then at the end turn right onto Rue Henri Dupriez, join Route d'Apremont on the left, and head towards Saint-Gervais Church and the car park (S/E).