As a boy,lewis visited national parks and he learned how fragile and amazing the earth is. Now he wants to protect the earth and draw attention to the problems facing it.He decided to swim in water near the north pole to bring attention to the melting glaciers and icecap.lewis said that the swim was so scary and painful that it would be his last time swimming in freezing water.
But when he heard about lake lmja,near Mt.Everest,high in the Himalayas,he decided to swim in cold water again.