When one speaks of rocks, where I live the ancient glaciers dropped these huge boulders all over the woods. Some are over 10 to 15 feet tall. When Skye was a puppy I'd bring her to a rock, not always a big one, and encoruage her to climb up. Well she was young at the time and a little hesitant. She is 9 months old now and we have a list of rocks that she can scamper up in a second. She knows these by name, bunny rock, flat rock, boulder, big rock, little rock, agility rock, its fasinating the knowledge these bundles of love can understand. We walk in the woods and all I have to say is a rock name and she runs right up. Always a treat is ready. Walks with Skye are always an adventure.