The endurance athlete, 36, took just one year to accomplish the astonishing feat at Leisure At, Cheltenham, Gloucestershire. He has swum an average of over 2,100 25m lengths each week since April 2014 - a total of 1,566 miles. It is the same distance as London to Madrid…and back. The father-of-one spent up to six hours-a-day in the pool using a combination of front crawl and breaststroke. He completed more than 75,000 lengths in both indoor and outdoor pools across the UK, US and in the Mediterranean.