We stayed in Alvor in February and this beach was our favorite place for an early morning or sunset walk. Very relaxing atmosphere: there were just a few people around and most of the cafes were closed due to off-season.
Beautiful sandy beach, especially at sunrise, when I was there it was nice and clean. Stretches far so there is lots of space, it's nice to walk along the shoreline, or along the boardwalk which leads down near a lighthouse and also down to the dock area. Enjoyed walking up the staircase over the left side of the beach, great spot for a photo as the view is good.