The water in the Rio Olympic diving and water polo pools has gone from a healthy blue color to a swampy green, and it's grossing out the world.
According to USA Today, water treatment experts say the water turned a murky shade of green because they ran out of some chemicals used to treat the pool, but they insist the water poses no health risks to athletes.
The water is so dark that divers have said they can't see their partner underwater.
FYI: Lake Minnetonka is known for having a lot of booze containers left behind after Fourth of July celebrations – and it's pretty gross.
Even the American Olympic divers, David Boudia and Sam Dorman, are joking about the water.