Leading image: free climber Avi Wine, 19, scales cliff faces. He doesn’t use ropes because if he falls, he falls into the sea. Above: Gibraltar’s flag is perched high up on The Rock as shipping barges float by. / Magdalena Hernan Sanz is a Spanish nun at the Marillac Home in La Línea de la Concepción, Spain footsteps from Gibraltar. / Even though it is a peninsula, Gibraltar feels like an island. On this cliff face, water surges from a cave. At first sight it may seem like a geographic marvel, until you realise it’s simply runoff from the desalination process. / A detail of the colours of Catalan Bay