This is editorial discretion regarding AI-generated images at its worst.
They aim to get you to at least a basic fitness ("Seepferdchen") for swimming (25m) and light "diving"(picking up something from shoulder deep water).
It appears this isn't the case in the US? Would probably be a good thing to add.
Oddly, swimming is not required curriculum in Hawaii (per a friend) because they assume everyone already knows how to swim - except she couldn’t! She’d only ever been wading at the beaches.