WATCH: Understanding the dangers surrounding red tide and toxic algae
A large portion of Florida's coastline is being invaded by what's called a "red tide", which has been naturally occurring along the Gulf Coast since the 1800's, but now scientists say it's back with a vengeance. They are reporting the worst red tide in nearly a decade.
7:08 PM EDT August 18, 2018
3:08 PM EDT August 18, 2018