Good open scenery high up descending in to France becomes very tight with cows on the road and lots of cow muck.
Really nice and quiet road (or I was lucky). Great corners mostly near the top and the way down at Spanish side of the col. After Isaba follows the Roncal pass.
The D132 becoming the NA137 at the Spanish end. An excellent technical section with some occasional mud on road. Nonetheless, very rewarding if you get it right.