Explore hiking trails around Castillon-de-Saint-Martory, Midi-Pyrénées. The best hike near Castillon-de-Saint-Martory is Coret de Uelhicrestada via Camin des Banhs de Tredòs, a 17.7 mile oneway in Parc Nacional d'Aigüestortes i Estany de Sant Maurici. Castillon-de-Saint-Martory has population 398.0.