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How far can leatherback sea turtles migrate between feeding and nesting areas?

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Illustrations of ten representative chelonians, including spiny softshell turtle, Galapagos giant tortoise, green turtle, alligator snapping turtle, Blanding's turtle, common map turtle, eastern box turtle, eastern painted turtle, spotted turtle, and eastern mud turtle, each labeled with its common and scientific name. A scale bar at the bottom shows size comparison. — turtle Turtles (order Testudines).

Leatherback sea turtles are highly migratory, typically swimming about 16,000 km (approximately 10,000 miles) annually between their feeding and nesting sites. Some individuals are known to travel even greater distances; for example, one turtle was tracked covering 20,558 km (12,774 miles) during a journey from New Guinea to Oregon.1