Start at the war memorial on Rue de Marzelle at the entrance to Trigny when coming from Reims.
(S/E) Take Rue Marzelle, which climbs towards the village centre. The pavements are narrow. You’ll reach a roundabout with a fountain in the centre.
(1) At Place Fontaine, turn left towards Muizon. Stay on this road via Rue de l’Église until you reach the wine cooperative, where you should turn left. From there, follow the clearly visible “Circular Route Bel Air” markings. Heading south at first, then west, the path meets thefirst tarmac road.
(2) Cross with care, and continue straight on through fields and woodland. The path reaches the D75.
(3) Turn right, then cross the road. Follow it for about 200 metres. At the end of the right-hand bend, turn onto the path that climbs to the left, then immediately right for about 700 metres. The signposting is always very clear.
(4) Leave the path on the left and head into the forest. The track is clearly visible. After about 200 metres, take the small path on the left, which is sometimes poorly marked.
(5) When you reach the concrete road, head left to follow the signposting again towards Mont Die on the left, with its antenna visible from a great distance, from where a beautiful view opens up before you.
(6) Highest point of the walk. The long straight stretch heading north-east offers a beautiful view.
(7) At the edge of the woods (just before the Bel Air farm), turn left onto the forest track that descends into the Bois de Bonnival. ''See 'Practical Information' for an alternative route'.
(8) After fording the stream (depending on the season), turn right.
(9) Turn right again (150 metres after the ford) onto a barely visible, unmarked path (GPS tracking essential; stay alert so as not to miss it). It heads south then south-east; you may need to stray slightly from the path at times to avoid muddy patches.
(10) When you reach a crossroads, turn slightly left (check the route anyway, as the paths may disappear), then right onto the path that climbs. After a right-hand bend, leave the forest heading south-east towards the La Montagne mast.
(11) After the mast, cross the tarmac road to take the steep descent leading to Trigny. Then turn right onto the main road until you reach the fountain square.
(1) Head left towards Chalons/Vesle to reach the war memorial, the finish point (S/E).
