Randonnée pédestre sur le GR®127 à travers le département du Pas-de-Calais de Dennebroucq à Duisans via Vincly, Bomy, Cuhem, Fléchin, Febvin-Palfart, Fontaine-lès-Hermans, Nédonchel, Nédon, Amettes, Bailleul-lès-Pernes, Aumerval, Sachin, Pernes, Marest, Diéval, La Comté, Rebreuve-Ranchicourt, Bouvigny-Boyeffles, Ablain-Saint-Nazaire, Carency, Mont-Saint-Éloi et Marouil.
 

https://www.gr-infos.com/gr127.htm

The idea for this route was born out of R2R2R in the Grand Canyon. Palo Duro Canyon is the 2nd largest canyon in the United States needed a good FKT and this is fitting as it not only goes R2R2R but throws in the famous Lighthouse rock formation as well, giving the runner a tour of the canyon like no other.

The route attached here is simply an example, not the actual route. This follows the well known concept for islands : start at any beach, and finish at the highest point on the island. You can take any available road or trail to get there on foot.

I recently completed this route in February of 2023, and as far as I know this is the first completion. Please correct me if someone else has already done this, and please try it out for yourself. It was a very fun adventure.