Cookie would be a part-time swimmer, or more actually 'jumping onto the water with my belly first and making huge splashes of water that gives mom a shower, climbing up the shore again and jumping again'. She does this for about one hour.
After that we go home again by bike (she runs with a springer attached to her harnass).

When home, she sleeps for the next 6 hours or so, but always near me. That's when she's out of work and incredibly lazy.

When in the mood, she could also go for the model jobs of course. She knows she's good looking