We have read that we should walk a puppy 5mins per month plus 5 mins once or twice a day - that’s about 30mins for our nearly 5 month old. We do not have a big garden so the walks are the main exercise he gets. He is obviously much happier and calmer after a walk and we would be happy to take him for longer walks. He never seems to run out of energy on our walks and we wonder whether longer walks are ok. Now and again we check the time and realise we have been out longer than the recommended 30mins. Obviously we don’t want any long term bone/hip issues from too much exercise. Does anyone have a view? As a larger breed can they have longer walks as puppies without risking any long term damage?