She may be the one longest way to the Mediterranean Sea, probably also the most curvaceous, in any case but the most spectacular - the Route des Grandes Alpes, it's no longer possible to climb higher up. From Lake Geneva to the Côte d' Azur, there are 15 spectacular Alpine passes in a row covering almost 700 kilometres, including the highest in Europe. A tour for passionate mountain climbers who want to see the most breathtaking panoramas of the Alps. But beware, France's most spectacular route is only for those with a head for heights. Duration: At least three days should be allowed.