Route: Sines - Troia (Portugal)

Sines - Troia: The longest beach in Europe
Located at the East Coast of Portugal, the beach between the cities of Sines and Troia, is the longest in Europe, and the 7th longest in the world. It´s 65 km (40 miles) of uninterrupted sand, 90% of it very soft, which elevates the difficulty of the route.

Photos of the beginning & end from Google Street View.