At a local park on a beach in Tampa, Florida, dog owners were playing with their dogs when Zena, a yellow lab, ran a little too far into the ocean while chasing a ball.

After seeing that Zena was drowning, a brave woman ran out into the ocean, and brought the dog onto the beach where she immediately started to give it CPR.

Other bystanders started to gather around to help. One even gave the dog mouth to mouth. Eventually a group of firefighters, who just so happened to be passing by, saw the crowd, and joined in the rescue.

Her owner says that Zena is doing just fine after the rescue!

[Source]