Why Swimming Is One of the Best Exercises for Dogs
Swimming is widely regarded by veterinary professionals as one of the most beneficial forms of exercise a dog can undertake. Unlike running or jumping, swimming places minimal stress on the joints while engaging nearly every major muscle group. The buoyancy of water supports the body weight, reducing the load on hips, elbows, and knees — making aquatic exercise particularly valuable for dogs suffering from osteoarthritis, hip dysplasia, or recovering from orthopaedic surgery.
Cardiovascular fitness is another significant benefit. A few minutes of swimming can be equivalent to far longer periods of land-based exercise in terms of cardiovascular demand. For older dogs or those carrying excess weight, this means a meaningful workout without the risk of overexertion or joint damage. Regular swimming can also help maintain muscle mass in dogs whose mobility is otherwise restricted by pain or injury.
Breeds That Love Water — and Those That Struggle
Not every dog is a natural swimmer. Certain breeds have been developed specifically for aquatic work and typically take to water with enthusiasm. Labrador Retrievers, Golden Retrievers, Portuguese Water Dogs, Irish Water Spaniels, and Standard Poodles are among the breeds most suited to swimming. Their physical characteristics — webbed feet, water-resistant coats, and athletic builds — make them efficient and comfortable in the water.
Cocker Spaniels and Springer Spaniels also tend to enjoy swimming, though their long ears require careful post-swim attention to prevent ear infections.
At the opposite end of the spectrum are brachycephalic (flat-faced) breeds such as Bulldogs, French Bulldogs, and Pugs. These dogs face serious risks in water. Their shortened airways and heavy, compact bodies mean they struggle to keep their heads above the surface and tire rapidly. Swimming can be actively dangerous for brachycephalic breeds, and owners should exercise extreme caution — these dogs should never be left near open water unsupervised, and pool access should be carefully controlled.
Short-legged breeds such as Dachshunds and Basset Hounds, as well as breeds with particularly dense musculature like the English Bulldog, are also poor swimmers by nature.
Safety Essentials: What Every Owner Must Know
Life Jackets for Dogs
Even strong swimmer breeds can tire unexpectedly, especially in currents or cold water. A well-fitted dog life jacket is an essential piece of safety equipment. Look for jackets with a sturdy handle on the back, which allows you to lift your dog from the water quickly in an emergency. Zooplus stocks a range of dog life vests suitable for different sizes and breeds — a worthwhile investment before any open-water outing.
Never Leave Dogs Unsupervised Near Water
Dogs can enter water impulsively and encounter difficulty faster than owners might expect. Always maintain direct supervision, and keep weak swimmers or brachycephalic dogs on a lead near rivers, lakes, and the sea. Ensure there is always a safe exit point — dogs that cannot find a way out of a pool or steep-banked river can panic and exhaust themselves quickly.
Leptospirosis Risk from Natural Water
One of the most serious health risks associated with swimming in natural water sources is leptospirosis — a bacterial infection spread through the urine of infected animals, particularly rats, which contaminate rivers, canals, and still freshwater bodies. In dogs, leptospirosis can cause severe kidney and liver failure and is potentially fatal. It can also be transmitted to humans, where it may cause Weil's disease.
ESCCAP (European Scientific Counsel Companion Animal Parasites) recommends vaccination against leptospirosis for all dogs with exposure to natural water. In the UK, the L4 vaccine protects against four serovars of the bacteria. Speak to your vet about ensuring your dog's leptospirosis vaccination is current, particularly before the summer swimming season.
Blue-Green Algae: A Hidden Danger
During warm summer months, standing water in the UK and across Europe can develop blooms of cyanobacteria, commonly called blue-green algae. These blooms can produce potent toxins capable of causing liver failure and neurological damage in dogs — even small exposures can be fatal, and deaths have been reported across the UK each year. Affected water often appears greenish, with a paint-like or scummy surface.
Always check local Environment Agency or council warnings before allowing your dog to swim in a lake or pond. If in doubt, keep your dog out of the water entirely.
Hydrotherapy as Veterinary Treatment
Beyond recreational swimming, hydrotherapy is an established veterinary rehabilitation technique in the UK. Canine hydrotherapy uses warm-water pools or underwater treadmills to aid recovery from surgery, manage chronic pain conditions, and support weight management.
The National Association of Registered Canine Hydrotherapists (NARCH) is the primary professional body in the UK overseeing canine hydrotherapy. NARCH-registered practitioners have completed recognised training and adhere to professional standards. Hydrotherapy is often recommended by veterinary surgeons post-operatively, particularly following cruciate ligament repairs or hip replacement procedures. In many cases, pet insurance policies will cover hydrotherapy when it is vet-referred.
Sessions are typically conducted in a controlled environment with a fully trained therapist present at all times — quite different from recreational swimming and far more structured in terms of duration and technique.
Post-Swim Care
After any swim, rinse your dog thoroughly with clean fresh water to remove salt, chlorine, bacteria, or algae from the coat. Pay particular attention to skin folds in breeds prone to them. Ears require special care: moisture trapped in the ear canal creates ideal conditions for bacterial and yeast infections. Gently dry the outer ear with a cotton pad after swimming. Dogs with floppy ears such as Spaniels and Bassets are especially prone to otitis externa and may benefit from a veterinary-recommended ear-drying solution used after every swim.
Where to Swim Safely
Many UK beaches designate dog-friendly areas, particularly outside peak summer months — local council websites publish seasonal restrictions. Inland, purpose-built canine hydrotherapy pools offer the safest controlled swimming environment. Some leisure centres and country parks also provide supervised dog swimming sessions. Always research water quality, check for algae warnings, and ensure your dog is vaccinated and in good health before heading out for a swim.