Episode 69 - Weeki Wachee, FL

In 1946, a former Navy diving instructor figured out how to pipe pure air through a hidden hose so a person could breathe underwater with no mask, no tank, and no visible bubbles — and just perform, like they were on dry land. He called them mermaids. The show opened in 1947 and has run daily ever since, outlasting the tiny Florida city that was incorporated specifically to promote it.