Trail dogs are the best companions when hiking and camping, but they can also be a lot of fun when mountain biking too. At least if they're as fast and full of energy as Buddy, the pup in this video. He loves to chase his owner while she rides her bike and he looks like he has a lot of fun doing so. Apparently he enjoys a good hike as well, and judging from his enthusiasm, he pretty much likes anything else that gets him outdoors too. Just our kind of dog.