Beaver 
3-5 years.
Unparented

Can comfortably move and float in water, gets eyes and face wet without or with goggles

Seal
3-5 years.
Unparented

Can jump into chest-deep water without help, float independently and glide on the front and back 2m without assistance

Goldfish 
3-6 years.
Unparented

Can float/move in deep water with assistance,
breathe rhythmically 5 times, flutter, do surface support for 5 seconds and swim 5 meters

Gator 
3-6 years.
Unparented

Can float/move in deep water with assistance, breathe rhythmically 10 times, flutter, do surface support for 10 seconds and swim 10 meters

Dolphine
3-6 years.
Unparented

Can float/move in deep water with assistance, breathe rhythmically 15 times, flutter, do surface support for 15 seconds, and swim 15 meters