garganta de los infiernos natural reserve, extremadura, spain

family crossing pilones pedestrain bridge granite roundshaoed forms garganta infiernos natural reserve extremadura spain caceres travel jerte river backwater cold turquoise crystalline water three people visitors trekkers handrail upper early autumn season sierra tormantos gredos valley idyllic spot hells gorge southwestern side tornacavas cabezuela del valle mountains hydrographic network hills