He's rebuilding reefs in Florida with nursery-grown coral and the help of thousands of divers.

Mike Goldberg spent his early career working in financial services, putting in long hours for 12 years, he said, before he decided it was time to call it quits.

“I was just chasing money,” he said. “But I realized that is not me. … It just wasn’t true to my core.”

In 1996, Goldberg left his job and his home in Los Angeles to follow his passion for underwater diving, spending time in Hawaii, the British Virgin Islands, and the Cayman Islands.

“When I got out of the water after my very first dive, I decided that this is what I really wanted to do … to take my life and somehow intertwine diving and making a living,” he said.