Viena - Santiago de Compostela. part 2: Hintersee-Feldkirch

This route is intended as both a pilgrimage and a mountain excursion. It will cover Austria, from Vienna to Feldkirch, with points of interest including the Donau radweg and Salzkammergut radweg; southern Bavaria, especially Berchtesgaden National Park and Eibsee, riding part of the route along the Mozart radweg; Switzerland, taking in the Lauterbrunnen valley and Ochinensee lake, along with several other lakes; France, attempting to see Mont Blanc, the Tarn Gorge, and the Gavarnie valley; and finally Spain, seeking to capture some of the beauty of the Pyrenees (up to Jaca), then following the Camino de Santiago to Compostela. It's a route of approximately 3800 km and requires at least two months of cycling.