I have a small Shih Tzu who is 16 years old he's basically blind slightly deaf and sleeps most of the day. I take him for a walk up the street in the evenings. I also have a mix of blue heeler pit and many other breeds. He is about 75 pounds. He is an absolute sweetheart, but is very scared. He would need at least one 45 min walk a day, preferably in the woods he does not like crowds, but is very happy out in the woods on trails.