Explore hiking trails around Arros-de-Nay, Aquitaine. The best hike near Arros-de-Nay is Cascada Cola de Caballo Loop via Senda de Los Cazadores and Senda a la Cola de Caballo, a 11.7 mile loop in Parque Nacional Ordesa y Monte Perdido. Arros-de-Nay has population 800.0.