In this photo released by the Florida Keys News Bureau, Jeremy Stengel, a 22-year-old Marine who lost his left leg as a result of a combat injury in Iraq 14 months ago, goes scuba diving for the first time Monday, April 7, 2008, in the Florida Keys National Marine Sanctuary off Key Largo, Fla. Stengel used a special prosthesis that features an artificial foot that can be extended so a dive fin can be used as normal. [Agencies]