141021-F-FN000-074
Michael Gray, right, 24th Special Operations Wing water operations instructor, tests Johnnie Yellock’s, left, retired Staff Sgt. and 23rd Special Tactics Squadron combat controller, ability to move through water during SCUBA-Pool Emergency Procedures training on Hurlburt Field, Fla. Oct. 21, 2014. “Johnny’s situation does not allow the use of swim fins,” said Gray. “He pretty much follows the same guidelines used for paraplegics.” (U.S. Air Force photo/Senior Airman Kentavist P. Brackin)