Keeping Pets Safe Around Florida’s Pools, Canals & Waterways

Living in Dunedin means your pets are never far from water. Between neighborhood pools, the tidal canals that wind through Pinellas County, and the sparkling shores of St. Joseph Sound, water is part of everyday life here in Florida. That’s wonderful — until it isn’t. Water can pose serious, sometimes life-threatening hazards to dogs and cats, and as your partners in pet health at Dunedin Animal Medical Center, we want every pet parent heading into summer with the information they need to keep their animals safe.

Pool Dangers: Not Every Dog Is a Natural Swimmer

It’s a common myth that all dogs can swim. While many breeds take to water instinctively, others — including bulldogs, pugs, dachshunds, and basset hounds — have physical builds that make swimming extremely difficult. Even confident swimmers can exhaust themselves trying to find the pool exit, panicking and going under before they reach the steps.

If your dog has access to a backyard pool, always fence it when unsupervised and teach your dog exactly where the steps are — practice this repeatedly until it’s muscle memory. Consider a brightly colored pool ramp or escape platform designed for pets. Cats rarely enter pools voluntarily, but if they fall in, the smooth walls make it nearly impossible to climb out. The same escape ramp applies for cats.

Canal Hazards in Pinellas County

Dunedin’s tidal canals are beautiful, but they carry hidden risks. Boat traffic creates strong wakes and prop turbulence near the surface. Canal water also tends to concentrate runoff, bacteria, and algae — far less safe for your dog to drink or swim in than it might appear. Watch for sharp debris like fishing hooks, shells, and discarded line along canal banks, and keep dogs on leash near unfenced waterways.

Alligators are also a year-round reality in Florida canals and ponds. No matter how shallow or residential the waterway looks, never let your dog wade in unattended — especially at dawn and dusk when gators are most active.

Blue-Green Algae: A Hidden Killer in Florida Lakes

Cyanobacteria, commonly called blue-green algae, is one of the most dangerous water hazards for pets in Florida. It thrives in warm, slow-moving freshwater — exactly the ponds, retention basins, and lakes common throughout Pinellas County during summer. Blooms can appear almost overnight after heavy rain or heat waves.

What to look for: thick, paint-like scum on the water surface in shades of blue-green, green, or brown; a pea-soup appearance; or a strong musty or earthy odor. If you see any of these signs, keep your dog far away. Toxins from cyanobacteria can cause liver failure, neurological symptoms, and death — sometimes within hours of exposure. There is no antidote. If your dog swam in or drank from a suspect water source, rinse them thoroughly and call us or an emergency clinic immediately.

Saltwater and Tampa Bay Beaches

A romp along the waterfront at Honeymoon Island or Caladesi is hard to beat, but saltwater poses its own risks. Dogs who drink large amounts of saltwater can develop salt toxicity — symptoms include vomiting, diarrhea, lethargy, muscle tremors, and in severe cases, seizures. Always bring fresh water on beach trips and encourage your dog to drink from their own bowl rather than the bay.

After any saltwater swim, rinse your dog thoroughly to remove salt, sand, and any marine organisms from the skin and coat. Salt left on the skin can cause irritation and dryness, particularly around paws and between the toes.

Dog Life Vests: Gear Worth Having

Whether you’re boating on the Intracoastal, kayaking the mangrove tunnels at Caladesi, or simply have an accident-prone pup near the backyard pool, a properly fitted canine life vest is a smart investment. Look for a vest with a sturdy handle on the back — it lets you lift your dog quickly from the water — plus bright colors and reflective strips for visibility. Practice wearing it on dry land first so your dog gets comfortable before hitting the water.

Recognizing Water Intoxication

Yes, dogs can drink too much water — especially enthusiastic fetchers who lap water between every dive. Water intoxication (hyponatremia) dilutes the body’s sodium levels and causes brain swelling. Warning signs include lethargy, bloating, vomiting, loss of coordination, glazed eyes, and excessive drooling shortly after heavy water play. This is a medical emergency — get to a vet immediately.

A Note on Post-Swim Care

After every swim, rinse your dog with clean fresh water, dry the ears gently, and check paws for cuts or embedded debris. Dogs with floppy ears are prone to otitis externa (swimmer’s ear) after repeated water exposure. If you notice head shaking, scratching at ears, or odor after swim days, schedule a visit with us at Dunedin Animal Medical Center — we’re here year-round to keep your water-loving companions healthy all summer long.