This itinerary is in all the guides that evoke the most beautiful Pyrenean lakes. Hidden at the top of a wild mountain, the lake of Er is a destination of choice for all those who love sportive hiking in a rich and preserved nature.
Reach Pau (Pyrénées Atlantiques), follow signs for Zaragoza as far as Gan, then take the D934 towards Laruns, Gourette, Spain (Col du Pourtalet), Col d'Aubisque. After crossing Laruns, follow signs for Spain. Pass Eaux Chaudes, continue for about 5kms, park in a parking lot on the left of the road. The entrance to the path is on the other side of the road, directly into the forest.