Barra and Vatersay are the southernmost inhabited islands in the Scottish archipelago of the Outer Hebrides. Barra having one of the three passenger airports on the archipelago, it’s one of the region’s most popular destinations despite its small size and population. For Vatersay (known in Gaelic as Bhatarsaigh), without an airport and connected only to Barra (Bharraigh in Gaelic) by a causeway, visitor numbers are somewhat smaller. With their visitor numbers combined however, both islands have managed to inspire a long-running art project that also serves as something of a…