Ear-deep in watermelon, a boy eats a juicy slice at a festival in Florida, December 1963.

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Girls in swimsuits sip from a water fountain in New York, July 1948.

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People play in water off Luquillo Beach in Puerto Rico, December 1962.

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Children cool off from summer heat outside a Connecticut firehouse, April 1935.

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A married Swiss Guard and his family enjoy a patio pool at their compound in Vatican City, 1985.