Monasterio de San Pedro de Siresa (Saint Peter´s Monastery).
The starting point for long and short sightseeing tours: Calzada romana (Roman road), ibón de Acherito (ibón: small lake), ibón de Estanés, Puerto del Palo (Palo´s pass).

From 5.6 miles of Valle de Oza and from 4.3 of the ski resort you can go: fishing, hunting, hiking, cycling, etc.

In BOCA DEL INFIERNO (Hell´s mouth) you could see examples of the ornithological species TREPA RISCOS.

CASTILLO D'ACHER  Hotel - Restaurante

Pl. Mayor, s/n
22790 - SIRESA (Huesca)