Chestnut Grove Trail Activity · Rozas de Puerto Real, Sierra Oeste, Madrid Image of Rozas de Puerto Real, not of the place itself. A route that starts on Calle Estudiantes, beside the M-507 road, works its way in among chestnuts and oaks past springs such as El Chorrillo, and comes out on the M-501, with views over the reservoir and the Sierra de Gredos. Photo: Dirección General de Turismo. Consejería de Economía e Innovación Tecnológica. Comunidad de Madrid. (CC BY 3.0 es) What to see and do in Rozas de Puerto Real