The Leisure and Cultural Services Department announced on October 12, 2026, that red flags had been hoisted at four Hong Kong beaches because of big waves. The affected beaches were Stanley Main Beach, Shek O Beach and Big Wave Bay Beach in Southern District on Hong Kong Island, and Silverstrand Beach in Sai Kung District.

Beachgoers were advised not to swim at these beaches while the red flags were in place. The department's announcement, carried in a government notice aimed at television and radio announcers, described the warning as a matter of interest to swimmers.