Yeah unfortunately , but did you see the vid , you got to have some courage doing that , i did cage diving myself in gansbaai South africa with some great whites , i didnt get out of the cage how ever
"The dive was not an easy task. In order not to frighten the animal had to Ramsey without zuurstoffles scuba diving for as little as possible to produce air bubbles. Ramsey was the stunning images of the dive online to her love for the predator to share with others. It has gone on for many years for the protection of sharks."
I gather that the woman swam without scuba gear to avoid air bubbles but it may be explained why in a link.