Hecho or Echo is a village on the edge of the Pyrenees, not far from Jaca. The only bus is in the evening so you are almost obliged to stay if you want to go at all, hardly a great hardship!
It is an idyllic village, seeming older than it actually is, with steps and winding roads. Only about 3 kilometers away is the smaller village of Siresa with an ancient monastery.
The mountains are further up the valley and there is no way there other than car or foot.
Pyrenees Guide .com – hecho & anso valley tourism travel guide