Walking your dogs on Llandudno beach

The number of beaches on which one is allowed to walk your dogs is fairly limited, so I was surprised to see this lady walking her three dogs on Llandudno beach (map).

I never paid attention to the sign that indicates the restrictions, but I presume that walking dogs is allowed because it seems to me that the beach is the only place where residents of the little suburb would be able to do so. Llandudno is built on the slopes of the mountain that lead down to the water's edge, so the chance of finding a nice open field on which your dogs could run is pretty much nil. :)