56,57,58,59, surface!
Hu!
Zhou Jing emerged from the water. The gas in her lungs had been slowly discharged during the floating process. She opened her mouth into an oval shape and breathed in the fresh air quickly and slowly.
Not far from her, Abby was also almost sticking her head out.
The two did not have the time to talk. They could only use a few seconds to greedily complete the exchange of carbon dioxide and oxygen in their bodies. They took roughly four quick breaths, then took a deep breath and plunged into the water again. If it took too long, the tourists would get impatient.
The glass wall that the tourists were standing on could only see the bottom of the saltwater tank, which was roughly five to nine meters below the water. When the two of them floated to the surface for a breath of air, they disappeared from the audience's sight.