If you are interested in the Almeria area you will have no trouble finding space on a campsite or camper stop. We are currently staying at Camping Cabo de Gata and it only gets full in the summer months. There are two nearby camperstops (paying aires) which both have plenty of space. It is also possible to wildcamp in many places, such as the beaches at Cabo village or Fabriquillas and, for under 7 euros, you can stay on the port car park at Almeria for 24 hours. Wildcamping is possible almost anywhere away from the coast - it is only on certain over-used beaches that people get turned off. Have a good trip.