La Línea de la Concepción is the Spanish town situated on the border of Gibraltar. It is often called La Linea for short. It is in the province of Cadiz. Tourists can pass freely between Gibraltar and Spain without any difficulty other than having to carry a passport. From the Gibraltar side you need to cross the runway which doubles up as a road and walk to the border a short distance away.
It is a town that dates back to the 18th century and would once have been a fortified town with soldiers and military to counterbalance the British on the other side. Linea means boundary or line so it is easy to see where the town got its name. Many people in La Linea have employment in Gibraltar and despite the fact that the Spanish government is ill at ease with Gibraltar on its doorstep the town has benefitted from the vibrant economy in Gibraltar. The main export of La Linea is fruit and vegetaables and other products for the food industries.