Well, no, 16 hairpin bends are not enough to complete the entire loop. 16 are the hairpin bends to the Falzarego pass, 13 km of pure pleasure with spectacular panoramic points.
If you ride down from the Campolongo Pass, you reach the village of Arabba. Its inhabitants are also known in the area as "i glacei da Rèba" or "the frozen ones" because the place is mostly in the shade.