It is possible to get about by bus. On the outskirts of the village are the bus stops which can take you to La Manga Strip or to Cartegena.  In Cartegena you can get buses to many places.

Car Hire is, of course available at the airport but we can arrange it for you if required.

Driving in Spain is not so different from driving in UK except that you have many more nationalities all driving in what they consider to be the correct way.
Roundabouts are relatively new to this part of Spain.  The correct way is to position yourself and indicate all the time, keep looking for where cars are around you.  Do not rely on just your mirrors.
Turning left can be a problem.  The original system still exists on some roads where you turn into a slip road on the right and then cross at right angles.  If you do not do this you may be driven into as the car behind will expect you to continue straight on.  The junctions are still in place on La Manga strip but elsewhere have been mainly replaced by roundabouts.
Roundabouts are called Rondas or Glorietas.  You may a sign saying “Peligrosa Glorieta” (Dangerous roundabout)