Their leader stands on her board, and urges students to stand up, stretching upward, a traditional start for many yoga classes.
Yoga is hard enough for some people.
Imagine doing it in the middle of a lake.
That's yoga-boarding, a fitness craze taking off in Austin, Texas.
Students try to do yoga poses while floating on a paddle board.
Instructor Blake hall says, "The board looks like a yoga mat and it adds an extra challenge to the practice."
"Being out here you just have to not be afraid to fall," says another class leader.
Instructors say you don't need experience on a paddle board to take the class.
Yoga boarding has only been offered for a few weeks, but the classes are already full.
