Water presents underappreciated hazards for dogs. Understanding swimming capability, toxic algae, and water safety prevents welfare emergencies in dogs that love water activities.
Water welfare hazards for dogs are underestimated because dogs' enthusiasm for water is taken as evidence of safety. A French Bulldog or Dachshund in deep water is in immediate drowning risk — their conformation prevents effective swimming regardless of motivation. Blue-green algae poisoning is rapid and devastating — dogs can collapse and die within hours of ingestion from toxic water. The welfare response requires owner education about which dogs need supervision or life jackets, recognition of toxic algae warning signs, and prompt action when dogs show signs of water ingestion or near-drowning. Water safety is a welfare responsibility that dog owners in swimming environments must actively consider rather than assume.