It is strictly forbidden to walk his domestic animal without being kept on a leash, to allow his domestic animal to chase, attack or bite a person or a wild animal and to leave his dog's excrement on site. Dogs are permitted on the park's trails as long as they are kept on a leash at all times. By keeping your dog on a leash, you will ensure his safety and save yourself a lot of trouble. It's an effective way to keep him from sniffing a porcupine. These animals are found everywhere in the park. Too often, poor dogs without a lead find themselves with their noses full of needles and in terrible pain. The leash is also useful in preventing your dog from falling off the top of the cliffs in the park.