The essential map for outdoor activities in Isle of Mull North and Tobermory. The OS Explorer Map is the Ordnance Survey’s most detailed folding map and is recommended for anyone enjoying outdoor activities including walking, horse riding and off-road cycling. This map now comes with a digital version which you can download to your smartphone or tablet. Ordnance Survey Explorer 374 Isle of Mull North & Tobermory Map With Digital Version | Millets