With its easy parking, obvious path, and simple (but full) dive site Malaga Cove is a standard go-to location for beginning divers.
After parking (check hours you’re allowed to be there), just walk down the path to the beach. For shortest swim, carefully do the rocky entry and you’re right next to the kelp. If you’d prefer to skip the rocks, walk past them to the sandy entry – but be prepared for a longer surface swim.
No facilities here, so you’re going to have to hit them back in town.