French athlete Philippe Croizon, whose arms and legs were amputated after an electric shock accident in March 1994, waits next to a 33 metre (36 yard) deep pool, the world's deepest pool built to train professional divers, at Nemo33 diving centre in Brussels Jan 10, 2013. [Photo/Agencies]

French athlete Philippe Croizon, whose arms and legs were amputated after an electric shock accident in March 1994, warms up before entering in a 33 metre (36 yard) deep pool, the world's deepest pool built to train professional divers, at Nemo33 diving centre in Brussels Jan 10, 2013. [Photo/Agencies]