OS Explorer map 397 shows the Inner Hebrides islands of Rùm, Eigg, Muck, Canna & Sanday. All the main islands are inhabited, although the population is quite low. They are popular with holidaymakers & wildlife watchers. With this map you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The OS Explorer map for Rùm, Eigg, Muck, Canna & Sanday is available in both the standard paper version & weatherproof ' Active' version.