The resort offers a tutorial for contestants to get the most out of the mix of hot spring water and cold air for their hair.
"If you have very long hair, a good method to freeze it is to lay it down on the sides of the pool so it may freeze in single, long strands," the resort suggests. "Later, it can propped up and it will stick straight up."
Don't worry, the look is not permanent.
"Dunk your head in the water," the resort said. "Your hair will instantly unfreeze and your head will be nice and warm again."