At just 16 months old, this baby is unlikely  to have been walking for long, let alone mastered any other physical  activities.

But this incredible footage shows the tiny toddler swimming unaided and looking completely comfortable in the  water.

The fearless baby swims face down, turning on  her back to rest when she needs to breathe.

Breather: Flipping herself over onto her back when she  runs out of breath, the little child has been taught a self-rescue swimming  technique

The infant even jumps in, without arm bands,  and swims to the far side of the pool unaided, without even taking a  breather.

The remarkable feat has received much  criticism from viewers on youtube.com.

In particular people are concerned the baby  is being forced to swim when she is tired and doesn’t want to.

But notes from the parents explain the  mother’s remarks on the video, and the child’s baby-talk.

Replying to the comments, Adam BC, who posted  the video, points out that he is a registered nurse and his wife was a life  guard for six years and taught swimming.

He also highlights that they are both  professionally trained in CPR and water safety he is certified in advanced  pediatric life support.

He writes that the child in the video,  Elizabeth, has been trained properly by certified instructors who teach the  infant swimming resource (ISR) technique  of swimming and self rescue.

Face down: She then swims back to the pool side for a  rest

Safe: The parents of the swimming baby explain that  their daughter is a determined little girl

He clarifies: ‘At no point do we force our  child to do anything she is unwilling to try.

‘We are able to recognize infant/toddler  fatigue in the swimming pool.

‘Elizabeth is a very determined little girl  and sometimes she wants to roll over and breath as she was taught and sometimes  she wants to hold her breath the whole way.

‘I was 100 per cent prepared to jump in at  first sign of distress. Please watch some of the other videos I’ve posted of her  swimming and spread the word.’

Adam recommends that all parents should teach  their children to swim ‘because it only takes a moment for them to slip under  and drown’.

‘Some times the difference between life and  death can be six inches of water and their ability to flip over on their back  and take a breath,’ he warns.

Unstoppable: She then jumps into the pool unaided and  begins to swim to the other side, much to the surprise of the mother

Determined: The tiny tot keeps on swimming, face down,  without stopping to rest, towards the far side of the pool

At one point in the video , it sounds as  though the parent is astonished at the toddler’s achievement, that she actually  swam to the other side of the pool.

Explaining what was so remarkable about that  moment, the notes say: ‘My astonishment is not in the fact that she could swim  across the pool because I always knew she could do it.

‘My astonishment came from the fact that she  didn’t turn around and come back to me.This was her first time she didn’t come  back to me :).

Strong: The baby doesn’t stop swimming until she reaches  the last step, the only place in the pool where she can touch the  bottom

Relaxed: Apparently unaware of her incredible feat, the  little child climbs out of the pool, not even out of breathe

She steps out of the pool like a pro as if nothing  remarkable has happened

Since posting the explanation, the parents  have received a flurry of applauding comments, claiming the baby will be a  swimming Olympic star, she’s learned a lifelong skill and congratulating the  parents on their teaching her.

Read more: DailyMail