3.40km → Ponte do Sebastião → 1.90km → Castelo do Neiva
To Santiago: 

After crossing the bridge the official camino turns right and uphill.  However it is possible to turn left and take the old (unmarked) road which follows the coastline.  Note that while this route is very doable it is best undertaken with a sense of adventure.  There are several bars along the way, and at least a bit of beach walking.

Photo of Ponte do Sebastião on the Camino de Santiago