A guid to trekking the Grande Traversata delle Alpi (GTA) from the Nufenen Pass on the Swiss border to Ventimiglia on the Mediterranean coast.Covering 809km (503 miles), this often overlooked long-distance trek through the western Italian Alps takes around 2 months to hike and is suitable for experienced alpine trekkers. The route is described from north to south in 55 stages, each between 7 and 26km (4–16 miles) in length.The route is divided into 3 sections with transport options given for those wanting to break the trek into shorter sections. GPX files available to download1:100,000 maps included for each stageHandy route summary tables help you plan your itineraryRefreshment and accommodation information given for each trek stage