More: Sully was diagnosed with bone cancer and we did a left leg amputation. This is one of my favorite pics of him napping in one of our many orvis beds. An active dog who traveled XC in a RV, backpacked sections of the AT, a loyal camping buddy, ran 10 mile run races, and would spend hours fetching his ball from the water year-round, Sully was always up for exploring. After the bone cancer diagnosis, we had to make some adjustments as a tripod, but he never let 3 legs slow him down!