The Suffolk County Department of Health says six more beaches closed to bathing Sunday due to excess levels of bacteria.
This includes Sayville Marina Park Beach, Tanner Park Beach in Copiague, Venetian Shores Beach in Lindenhurst, Fiddlers Green Association Beach in Lloyd Neck, and Baycrest Association Beach and Wincoma Beach, both in Huntington Bay.
The county says 11 other beaches remain closed.
Benjamin Beach and the Town of Islip Ronkonkoma Beach have reopened.