An hour east along the coast just before Cartagena, is Mazarron a busy seaside town, worth a quick stop, although further down the coast is Isla Plana which is the start of a great seafront walk 5kms down towards La Azohia. Start at the Roman baths (Banos de la Marrana) and join the 'Itinerio ecoturisristico' for a fabulous afternoons walk
if you have time left and don't mind heights a short drive further takes you up a single track road to a small village and beyond up to the Cerro de los Siete Cucones with quite breath-taking views especially like us if you go there at the end of the day.