I have owned various breeds of dogs over time. Some like the Spaniel have an affinity and adaptation for swimming testimony of their shiny coat which enables them to be waterproof. Most dogs instinctively know how to swim as most animals are won't to do. I usually go out with my dogs to a riverine area especially during hot weather and have realized that they cherish a cold plunge at this time. Dogs sweat through the mouth since they don't have sweat glands in their bodies. At other times, my dogs in to swim in an attempt to shake off nagging parasites. When I observe this, I make sure they go for grooming to get rid of fleas, mites and ticks. Swimming is a good pastime for dogs as it unleashes the puppy in them and its one of the few treats they learn to appreciate. Dogs should be introduced to swimming as puppies for them to appreciate it. Care should be taken as puppies can easily drown and should not be taken to deep water bodies.