"Underwater hockey is not a great spectator sport. You cannot see the game from above water, and good underwater video coverage is difficult," said Jen Gall, a board member with USA Underwater Hockey.
And, unfortunately, "the game cannot be 'picked up' on the corner lot."
But it's gaining popularity in places like San Francisco, which has a YMCA program and two city youth programs, Gall said.
Roger Bacon High School in Cincinnati, Ohio, has one of the few -- if not only -- high school underwater hockey teams in the country.
Nationwide, roughly 1,000 players participate in about 50 clubs, all of which are co-ed, Gall said.
It took awhile for Savu and Nicole Mazouchova to get the sport going in Atlanta. Exactly two players showed up to the Swordfish team's first practice: the two founders.
Now their club has a roster of dozens, including Morgan, a grandfather who won a gold medal in his division during the national championships in Washington last year.
At 52, he wasn't even close to being the oldest competitor on his championship team. That player was 76.
Now Morgan is bent on becoming the oldest championship player in underwater hockey, which means playing for at least another 24 years.
"Somebody's got to take that record away from him," he said.
In the meantime, he serves as an unofficial ambassador for the sport whenever people ask about his team T-shirt or the bright fins he carries around.
He said the reactions run the gamut -- from "'Oh you're kidding me, that's not a real sport,' to 'Oh, that sounds way cool -- I want to try that!'"