Pets that love splashing around in water require vigilant supervision. Some dogs will overexert themselves and then not have the strength to get out of the water. Also, consider your dog's health and age: An overweight or older animal may have more trouble swimming than he had in his fitter, younger days.
Cause for concern: If you see your pet struggling to stay afloat, hook his collar with a pole or provide a raft he can crawl onto and pull him to safety. If he's not breathing, administer CPR.
To keep your pet safe: Animals should never be left alone in or near water. If you take your pet swimming or on a boat ride, suit him with a life jacket and let him play in the water for just a few minutes at a time.