Caves are perhaps not the first landscape feature people associate with Scotland. Think high mountains, picturesque glens, rugged coastline and stunning sandy beaches – but caves? Here we list 12 of the most fascinating caves for walkers to visit. The Bone Caves, Inchnadamph, Sutherland The celebrated limestone Bone Caves were excavated in 1889 by the geologists Peach and Horne. They found the remains of now extinct animals which once roamed the Highlands including lynx, polar bear, arctic fox and lemmings. It is believed that the caves may have once sheltered both these animals and also the humans who hunted them.…