My shih tzu x pekingese puppy will be a year old in 2 weeks, and I'm just wondering what is too much exercise. I've read and heard that both shih tzu and pekes don't last long, and the average time is about 15 min a walk. However, my pup has walked up to 2 hours once and was ready to play afterwards (I got lost on our walk and didn't realize how long it took to get back home, lol). I've experimented around with 30 min, 45 min, 1 hour, and 1.5 hour walks and she seems fine after all of them, and always ready to play afterwards. I am wondering if I am pushing her too hard and she's just being a good dog and going where I'm going. She never really gives me a sign that she's really tired, maybe a little panting but that's it. Is my dog a super puppy and is just one of those anomalies that doesn't fit the short, smooshed face, small dog norms? Or am I making her do to much and should shortened the walks? Note, I never make her walk when it's warm out. I always make sure it's in the early morning and/or later in the evening when it's nice and cool.