As we left Portugal and headed across the border to Spain, we only had a rough idea of where to explore along the south coast. I wanted to go to Seville, but safe parking for the van was hard to find (there’s a lot of van break-ins in Spain), so on the drive we decided to head to Gibraltar for the day instead. We found a lovely little parkup at the Marina in the Spanish town of La Linea de la Concepcion for the night ready to explore Gibraltar the next day. We walked across the border into…