As a stereotype, most cats are not big fans of getting wet. Salina, however, just loves water and can often be found at her local pool. She also enjoys giving swimming lessons to those smaller than her. She's good at it too. In just a few hours her current student will be converted from a fairly weak and slow swimmer into a much more competent one.
The mouse inside might not appreciate Salina's help but her option isn't likely to matter for much longer anyway.