The chestnut grove of El Tiemblo Nature · El Tiemblo, Burgohondo - El Tiemblo - Cebreros, Ávila A chestnut wood situated within the Valle de Iruelas reserve, famous for preserving centuries-old specimens of enormous trunk. Autumn, when the leaf turns ochre, is the season of most visits. Photo: Discasto (CC BY-SA 4.0) What to see and do in El Tiemblo