A Mirador is Spanish for viewpoint, and this trail has plenty of those. Departing from the bridge over the Ara River, your legs are immediately in for a shock. Just behind the hotel Maison de Ainsa a very steep climb brings you up to a feeding spot for vultures. When you are lucky they might be there. The climbing continues over a pista and after turning left the pista turns into a sendero (singletrack) , after a while the views start to appear. The first part of this trail will meander alongside a cliff edge with amazing views over the lake and the Pyrenees. When you reach the tower ruin, the trail takes a hard right and throws you into a very loose, technical descent ending at the campsite of Morillo de Tou.
Leaving the campsite a long dirt road climb takes you back towards Ainsa. The last bit of climbing goes on technical singletracks over the Partara mountain. Don't forget to enjoy the views at the Partara bench at 859 meter. The last descent takes you over foresty narrow singletrack with some switchbacks towards the Eña river, which you have to cross to get up on the dirt road that connects to the road back to Ainsa.