We walked a long way on this beach today on the Camino. The Camino has gone right on the beach a few times and we really like it. They have beautiful sandy beaches all along the north coast of Spain. The slope is very gradual so the beaches are large and there is a lot of distance between low and high tide. The sand close to the water is hard packed and great for walking.
We had to cross a few streams but they spread out as they get to the ocean and we have no trouble crossing them with our waterproof shoes.
These photos show each direction. There are surfers on every beach and we have passed maybe ten surfing schools.