I love swimming, swimming's my passion and I hope I swim until the last day of my life, so I really, really do enjoy swimming, but swimming for me is simply a way of carrying a message.

I was very, very lucky because I started swimming when most of the landmarks in the world had not been swum.

Mount Everest is a very spiritual place, it's a beautiful mountain.

Sometimes we set boundaries for ourselves in life, or even worse, we allow others to do so. In many cases, these boundaries are just in our mind and need to be pushed away.

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.

I got bored and then joined the British SAS. It was five very exciting years of my life, and then I'd always had this passion for swimming, so started swimming around the world, in some of the most exotic and distant and dangerous locations.

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.