Up for the Challenge


Source: IFS

IFS is a proud supporter of Lewis Pugh’s recent expedition swimming 1 km across a supra-glacial lake in East Antarctica. Below, Pugh shares with us why he chose to swim Antarctica and his commitment to make the world a better place.

People often ask me why I swim without any protection other than a cap, goggles, and a pair of Speedo swimming trunks – even when the water temperature drops below zero. I do it for the challenge. Not for myself, but to world leaders.

When I ask them to protect vulnerable seas and oceans, I am asking them to be courageous. I am asking them to step out of their comfort zone and take action. I am asking them to be leaders and pioneers. How can I do this if I am not prepared to risk something myself?


In 33 years of endurance swimming, I’ve swum in every ocean in the world. I’ve broken records for the northernmost and southernmost swims, and for the highest ever swim, in the frozen Himalayas. But I have never experienced a swim like the one I just did under the East Antarctic ice sheet.

Swimming under the ice was as beautiful as it was terrifying. I swam between walls of ice, through an ice tunnel with needle-sharp stalactites dripping down above me. The blues were of every shade imaginable, from bright turquoise to deep indigo.

It was breathtaking, but the boom of the ice breaking above my head reminded me not to linger – that, and the fact that I could no longer feel my hands. The water temperature hovered around to 0°C.


I spent months preparing for this swim. Scientists have recorded over 65 000 supra-glacial lakes on the East Antarctic Ice Sheet. They are not only cold, but they are also unstable – they can suddenly crack and drain out in a terrifying rush.

So why did I want to swim here?  Quite simply to demonstrate the rapid changes that are taking place in Antarctica, and because I have seen the oceans of the world change before my eyes.

I’ve seen coral reefs bleach, I’ve seen underwater Gardens of Eden turn to virtual deserts, I have watched glaciers retreat, at both poles, at an unprecedented rate.

Record-breaking temperatures, industrial overfishing, and plastic pollution are just some of the challenges facing our oceans.

I once swam for the challenge of pioneering new places. Now when I swim I do so strategically, to focus attention on an area in trouble, and to motivate for Marine Protected Areas (MPAs) to keep them safe and help them recover.


Healthy oceans thrive with the kind of life I was accustomed to seeing when I started swimming all those years ago. Healthy oceans are also more robust at withstanding the challenges of climate change.

To date, my foundation has been instrumental in protecting over 2 million km² of vulnerable ocean – an area larger than Western Europe.

We are now working to fully protect at least 30% of the world’s oceans by 2030.

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