Josh later saves Dani's sister Kirsty Sutherland (Christie Hayes) from drowning, after she gets into trouble trying to save someone else with no one around. Josh is able to prove himself to Alf Stewart (Ray Meagher), who is in charge of hiring lifeguards.
The passage describes a scene where Josh saves Kirsty Sutherland from drowning, demonstrating his competence as a potential lifeguard. This action leads to him being noticed by Alf Stewart, who then evaluates his suitability for the position.