Routes here lean toward the demanding end, so plan full days and watch the forecast. Around 75 percent are circular routes, so parking once is usually an option.

The most reliable season overall is march to june, september to november. If you are only here for a weekend, Circular del Monte Hacho, Arroyo de Calamocarro-Fortín de Aranguren, Embalse del Renegado are the routes people return to.