OS Explorer Map 439 shows the National Scenic Area on the Coigach peninsula plus the Summer Isles. This area will provide a challenge to any outdoor enthusiast. The area is remote, mountainous & sparsely populated. Most of the Summer Isles, with the exception of Tanera Mòr, have no permanent residents. 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 Coigach & Summer Isles is available in both the standard paper version & weatherproof ' Active' version.