3 Suffolk beaches closed to swimmers

As the heat continues, here's a quick beach and swimming update:

• What's closed? Tanner Park Beach in Copiague and Sayville Marina Park Beach in Sayville. Also, Tides Beach in Rocky Point is still closed.
• What reopened? Ronkonkoma Beach on Rosevale Avenue in Ronkonkoma has reopened.
• Why do beaches close? Bathing in bacteria-contaminated water can result in gastrointestinal illness, as well as infections of the eyes, ears, nose and throat, according to Suffolk County Department of Health Services Commissioner Dr. Gregson Pigott.
• When will they reopen? The beaches will reopen when further testing reveals that the bacteria have subsided to acceptable levels.