tidal current; sweep of the tide; drift of the tide
Refers to the movement or flow of the tide, often in a nautical or coastal context.
潮の流れが速いので、泳ぐのは危険です。
The tidal current is fast, so swimming is dangerous.
船は潮の流れに乗って港を出た。
The ship left the harbor riding the tidal current.
Compound of 潮 (tide) + の (possessive particle) + 流れ (flow). The meaning is transparent from its components.