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Fish swim in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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Saupe fish swim in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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Anemone is visible in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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A grouper swims in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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A rainbow wrasse swims in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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Mountains are reflected in the waters of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)

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Yellow cluster anemone is visible in the protected area of France's Porquerolles National Park ahead of the U.N. Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)

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A wandering cratena, or nudibranch, is visible in the protected area of France's Porquerolles National Park ahead of the U.N. Ocean Conference on Friday, June 6, 2025. (AP Photo/Annika Hammerschlag)

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Anemone and peacock's tail are visible in the protected area of France's Port-Cros National Park ahead of the U.N. Ocean Conference, Saturday, June 7, 2025, (AP Photo/Annika Hammerschlag)