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A man swims in the sea with a mask and snorkel at a beach of Vouliagmeni suburb, southwest of Athens, on Friday, July 30, 2021. Greek authorities ordered additional fire patrols and infrastructure maintenance inspections Friday as the country grappled with a heat wave expected to last more than a week, with temperatures expected to reach 42 C (107.6 F). (AP Photo/Yorgos Karahalis)