If you're looking to go for a dip to cool down this week, you won't want to head to Wakulla Springs.
Over the next couple days the swimming area will be closed as biologists treat hydrilla in the water.
Biologists say the invasive weed is choking out the swimming area, clogging boat channels, and even killing off aquatic life.
The herbicide treatment can burn the skin and kill house plants.
The water should be okay for swimming by the end of the week.