That fence isn't pointless. The council fenced off the area right in front of the carpark for Alex Sanz. He will use that space when he heads down the coast this Summer.
Normal everyday people will probably park their cars at the top of the fenced off area and will want to hang out next to the beach. Some may want to have a picnic on the grass with their family. Others will attempt to relax by reading a book on the grass.
That carpark will be a perfect spot to launch a kite this Summer!