The Hawaii state Department of Health said Thursday that high levels of bacteria were found in the waters off Sans Souci Beach in Waikiki and that getting in the water could cause illness.

“The public is advised of a water quality exceedance of enterococci for this area,” the Department of Health said in a news release issued at about noon. “Contact with water in this area may cause illness. This advisory will remain in effect until water sample results no longer exceed the recreational water quality standard.”

Sans Souci Beach, also known as Kaimana Beach, is a popular swimming area for tourists and locals. It is the beach just Diamond Head of the Waikiki Natatorium War Memorial.

According to Wikipedia: “Enterococcus is a large genus of lactic acid bacteria … Infections caused by enterococcus include urinary tract infections, bacteremia, bacterial endocarditis, diverticulitis, and meningitis.”