I've seen some glaciers in the world which have been, which are just turquoise blue blue glaciers up in the Arctic. It's tragic to think that because of climate change, because of man's actions, they're melting away.

Very few things which are really worth achieving come easily. Sometimes they do, but most of the time you really have to work hard and cleverly.

If you've got a problem and you multiply it by 50-million people, it becomes unsolvable, but if you've got a problem and you divide it by 50-million people, it becomes solvable.

I was asked to give a speech on the Everest swim, and during the Everest swim, I changed. I changed as a person, I honestly did. That mountain changed me, and I gave a speech about it for nine minutes.

I've got two dogs - one's a Jack Russell and she's one year old now, and I've got another dog called Kanga, and I got him from a rescue shelter, and there's nothing I enjoy more than just walking them on the beach in Cape Town. I find that very destressing and very relaxing.

We have to appreciate that we are part of nature, we must work with nature; the environment is our lifeline.

I think every child in every country, not just South Africa, every year should go to a national park, and it should be part of their basic curriculum.