The world record deepest scuba dive was performed by Ahmed Gabr. Ahmed reached a depth of 332 m (1090 ft). Although he was able to reach in 12 minutes, it took 15 hours for him to surface safely.
Ahmed, a 41-year-old Egyptian, has broken the record for the deepest SCUBA dive, plunging an astonishing 332.35 m (1,090 ft 4.5 in) in the Red Sea off the coast of Dahab, Egypt. Ahmed's amazing dive broke the previous mark of 318.25 m (1,044 ft) by South African Nuno Gomes in 2005, also off the coast of Dahab.
In order to make the record dive, numerous precautions and preparations needed to be taken to ensure Ahmed's safety and success. The special forces officer in the Egyptian Army has spent 17 years as a diving instructor and used the last four training for the attempt. He submitted his original application of intent to Guinness World Records more than a year before his dive.
When the day finally came, Ahmed needed approximately 12 minutes to reach his record depth, which was measured with a specially tagged rope that accompanied him. But, to ensure safe passage back to the surface, it required nearly 15 hours to have Ahmed return back for air after breaking the record, due to the various risks of the water pressure at such depths.