Getting past Cesantes means crossing the N550 once more, at probably the most dangerous point in a curve in the road. Head straight across and keep to your right.
You are climbing uphill now and will traverse around the O Viso peak. Along the way you pass an installation of pilgrim shells and if you have a marker on hand you can leave a message on a sun-bleached shell. From here it is downhill again to the N550.
At the entrance to Arcade, the camino turns left rather unnecessarily. It will cross back over the N550 in a few hundred meters, taking you past the albergues and shops of Arcade.