From the church, turn right and then left on to the Booneghem road - pass the red buildings of the brick works - and continue for 1 km.
Continue straight ahead and, at No. 58, turn right on to the narrow path between the houses. You will pass through the Voluntary Nature Reserve (RNV) of Booneghem Marsh, comprising ditches and wetlands. Take the cable ferry and take care when crossing the river. This is a traditional method of transport in the Audomarois marsh. Continue on the right between the river and the vegetable crops.
At the entrance to Romelaëre Voluntary Nature Reserve, turn left towards the hamlet of Clairmarais.
Variant: depending on the site's opening periods, it is possible to visit the Romelaëre Reserve (2.5 km, 50 mins).
This 100-hectare site offers varied natural habitats: lakes, pastures, reed beds, woods, ditches and rivers and an abundance of animal and plant life (the many birds include cormorant, heron, bittern, western marsh harrier, etc.), and observation is facilitated by the specially designed paths open to all.
Make your way to the exit following the signs "retour vers la Grange Nature" and take a second cable ferry. At the entrance to the Reserve, turn right. Continue straight ahead along the road. Walk past the houses for 500 m. After a double bend in the road to the left and the right, walk past a vegetable farm to a footbridge (not secure to date, be careful) and cross it. Follow the Booneghem River. At the end of the path, cross over another footbridge.
Continue opposite and follow the "circuit de Booneghem" signs. At the next intersection, turn left then right. Pass through the fields. At the wayside cross, continue along the Booneghem road opposite for 750 m. Turn right on to Chemin des Culottes, then left on to Rue des Champs to return to the church.