Explore hiking trails around San Martín del Tesorillo, Andalucía. The best hike near San Martín del Tesorillo is Lavadero de la Fuente Vieja via Sendero Camino Viejo de Ronda, a 6.7 mile oneway in Parque natural de la Sierra de Grazalema. San Martín del Tesorillo has population 2742.0.