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Use "currents" in a sentence
"Changes in currents, changes in depth, changes in water color, and changes in structure."
"Look for changes in currents, where swift water meets slow water; changes in structure, where rocks and trees create holding water; changes in depth, like shelves and pools, or changes in color, which usually signal a depth or structural transition."
"Beginners can learn on tamer sections of the river, while advanced kayakers canget wet (really wet) in currents and the Class III rapids."