If you've just started reading then you need to go here first for the first part of this travelogue on the Southern Costa Blanca.
Puerto de Mazarron was our nearest seaside town and has a lovely waterfront area by the port. It was buzzy, and pretty, and we ate some of the best tapas in the bars there. We went there one evening and then went back for lunch (hurrah for paella with sangria!) & a walk on the beach on our last day.