These beaches have the best — and worst — water quality in greater Boston, report finds

A pair of beaches in South Boston were safe to swim in every day in summer 2023 while King’s Beach in Lynn was only open to swimmers about half the time, according to a report compiled by the advocacy group Save the Harbor/Save the Bay. The group announced its 2023 Beach Season Water Quality Report Card at a press conference on Revere Beach featuring U.S. Rep. Katherine Clark, of Massachusetts, the No. 2 Democrat in the House, and a number …