When swimming with senior dogs, it's vital to choose safe, shallow areas free of strong currents and steep drop-offs. Not all dogs are suited for swimming; smaller breeds or those with long backs like dachshunds, or brachycephalic breeds with respiratory issues, may face challenges. Always supervise your dog closely in the water to prevent accidents, and consider using a dog life vest for extra safety. Consult a veterinarian to tailor activities to your dog's health and capabilities, ensuring a safe and enjoyable swimming experience.