Explore hiking trails around Boô-Silhen, Midi-Pyrénées. The best hike near Boô-Silhen 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. Boô-Silhen has population 325.0.