Bustarviejo Valley from the Torres de Cancho Largo.

Early autumn can be a good time to walk in these mountains. Cooler than Madrid on the plain below and often a pleasing breeze. (but even so, care is needed as temperatures can still reach 35ºc or more - approx 90ºF). I take 3 litres of water with me for a long walk here, right up to late November when I cut back to 2 litres. The weight of 3 litres of water on a morning upward slog - before you have drunk much of the water therefore you feel the weight more than later - tempts some folk to ignore this. They always regret it later in the day with the sun at its highest!!