GP mentioned Red Cross lifeguard training which is specific to pools. They also have waterfront lifeguard training for lakes and rivers, but ocean lifeguards fighting significant currents go through a much harder certification done by other organizations like the United States Lifesaving Association.
It's much more strenuous and far fewer people make it through, thanks in part to the physical requirements.
It's much more strenuous and far fewer people make it through, thanks in part to the physical requirements.