French athlete Philippe Croizon (L), whose arms and legs were amputated after an electric shock accident in March 1994, swims next to an unidentified diver 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. Croizon, who swam with adapted prostheses that had flippers attached, broke a world record and became the first disabled person to dive to 33 metres, according to the organisers. [Photo/Agencies]

French athlete Philippe Croizon (C), whose arms and legs were amputated after an electric shock accident in March 1994, swims next to unidentified divers 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]