Immediately to the north of Marbella, at the southern tip of the Parque Natural de la Sierra de las Nieves, the Sierra Blanca is associated in most people’s mind with one emblematic mountain: La Concha. Wherever you are on the stretch of coast between San Pedro and Marbella its gracious, shell-like southern face rises like a multi-layered cake, providing a stunning backdrop to the villas that dot its...